diff --git a/app/controllers/profiles_controller.rb b/app/controllers/profiles_controller.rb
index cd7b9cb4a..a64356d4e 100644
--- a/app/controllers/profiles_controller.rb
+++ b/app/controllers/profiles_controller.rb
@@ -107,7 +107,7 @@ def set_profile_social_preview
 
   def profile_social_description
     return @user.profile_bio.to_s.squish.truncate(180) if @user.profile_bio.present?
-    "View #{@user.display_name_override.presence || @user.display_name}'s Hackatime coding profile."
+    "View #{@user.display_name}'s Hackatime coding profile."
   end
 
   def ensure_profile_og_image!
@@ -159,7 +159,7 @@ def public_profile_og_heatmap
   end
 
   def profile_summary_payload
-    { display_name: @user.display_name_override.presence || @user.display_name,
+    { display_name: @user.display_name,
       username: @user.username || "", avatar_url: @user.avatar_url,
       trust_level: @user.public_trust_level, bio: @user.profile_bio,
       social_links: profile_social_links, github_profile_url: @user.github_profile_url,
diff --git a/app/controllers/settings/base_controller.rb b/app/controllers/settings/base_controller.rb
index f2addd267..5647e01be 100644
--- a/app/controllers/settings/base_controller.rb
+++ b/app/controllers/settings/base_controller.rb
@@ -36,7 +36,9 @@ def common_props(active_section:)
       page_title: (is_own ? "My Settings" : "Settings | #{@user.display_name}"),
       heading: (is_own ? "Settings" : "Settings for #{@user.display_name}"),
       subheading: "Manage your profile, appearance, editors, integrations, privacy, goals, and data tools.",
-      errors: { full_messages: @user.errors.full_messages, username: @user.errors[:username] } }
+      errors: { full_messages: @user.errors.full_messages,
+                display_name_override: @user.errors[:display_name_override],
+                username: @user.errors[:username] } }
   end
 
   # Subclasses override this to provide section-specific props
@@ -45,6 +47,7 @@ def section_props = {}
   USER_PROP_BUILDERS = {
     id: ->(u) { u.id },
     display_name: ->(u) { u.display_name },
+    display_name_override: ->(u) { u.display_name_override },
     timezone: ->(u) { u.timezone },
     country_code: ->(u) { u.country_code },
     username: ->(u) { u.username },
diff --git a/app/controllers/settings/profile_controller.rb b/app/controllers/settings/profile_controller.rb
index 02df027d2..c5a63d081 100644
--- a/app/controllers/settings/profile_controller.rb
+++ b/app/controllers/settings/profile_controller.rb
@@ -1,6 +1,7 @@
 class Settings::ProfileController < Settings::BaseController
   def show = render_profile
   def update_region = update_section(region_params)
+  def update_display_name = update_section(display_name_params)
   def update_username = update_section(username_params)
 
   private
@@ -12,7 +13,8 @@ def render_profile(status: :ok)
   def section_props
     {
       username_max_length: User::USERNAME_MAX_LENGTH,
-      user: user_props(keys: %i[country_code timezone username]),
+      display_name_max_length: User::DISPLAY_NAME_MAX_LENGTH,
+      user: user_props(keys: %i[country_code timezone display_name display_name_override username]),
       options: base_options(keys: %i[countries timezones]),
       profile_url: (@user.username.present? ? "https://hackati.me/#{@user.username}" : nil),
       emails: @user.email_addresses.map { |email|
@@ -38,5 +40,6 @@ def region_params
     permitted
   end
 
+  def display_name_params = params.require(:user).permit(:display_name_override)
   def username_params = params.require(:user).permit(:username)
 end
diff --git a/app/javascript/pages/Users/Settings/Profile.svelte b/app/javascript/pages/Users/Settings/Profile.svelte
index 77497e40a..e409d10b4 100644
--- a/app/javascript/pages/Users/Settings/Profile.svelte
+++ b/app/javascript/pages/Users/Settings/Profile.svelte
@@ -14,6 +14,7 @@
     heading,
     subheading,
     username_max_length,
+    display_name_max_length,
     user,
     options,
     profile_url,
@@ -71,6 +72,41 @@
     {/snippet}
   </SectionCard>
 
+  <SectionCard
+    id="user_display_name"
+    title="Display Name"
+    description="This name appears across Hackatime instead of your Slack, GitHub, or username."
+  >
+    <Form
+      id="profile-display-name-form"
+      action={settingsProfile.updateDisplayName.path()}
+      method="patch"
+      class="space-y-3"
+      options={{ preserveScroll: true }}
+    >
+      <Field
+        inputId="display_name_override"
+        label="Display name"
+        error={errors.display_name_override[0]}
+      >
+        <input
+          id="display_name_override"
+          name="user[display_name_override]"
+          value={user.display_name_override || ""}
+          maxlength={display_name_max_length}
+          placeholder={user.display_name}
+          class={inputClass}
+        />
+      </Field>
+    </Form>
+
+    {#snippet footer()}
+      <Button type="submit" variant="primary" form="profile-display-name-form"
+        >Save display name</Button
+      >
+    {/snippet}
+  </SectionCard>
+
   <SectionCard
     id="user_username"
     title="Username"
diff --git a/app/javascript/pages/Users/Settings/types.ts b/app/javascript/pages/Users/Settings/types.ts
index de909ef3e..730713739 100644
--- a/app/javascript/pages/Users/Settings/types.ts
+++ b/app/javascript/pages/Users/Settings/types.ts
@@ -96,6 +96,7 @@ export type GoalForm = {
 export type UserProps = {
   id: number;
   display_name: string;
+  display_name_override?: string | null;
   timezone: string;
   country_code?: string | null;
   username?: string | null;
@@ -209,6 +210,7 @@ export type HeartbeatImportStatusProps = {
 
 export type ErrorsProps = {
   full_messages: string[];
+  display_name_override: string[];
   username: string[];
 };
 
@@ -222,7 +224,15 @@ export type SettingsCommonProps = {
 
 export type ProfilePageProps = SettingsCommonProps & {
   username_max_length: number;
-  user: Pick<UserProps, "country_code" | "timezone" | "username">;
+  display_name_max_length: number;
+  user: Pick<
+    UserProps,
+    | "country_code"
+    | "timezone"
+    | "display_name"
+    | "display_name_override"
+    | "username"
+  >;
   options: Pick<BaseOptionsProps, "countries" | "timezones">;
   profile_url: string | null;
   emails: EmailProps[];
@@ -238,7 +248,10 @@ export type AppearancePageProps = SettingsCommonProps & {
 };
 
 export type EditorsPageProps = SettingsCommonProps & {
-  user: Pick<UserProps, "hackatime_extension_text_type" | "show_goals_in_statusbar">;
+  user: Pick<
+    UserProps,
+    "hackatime_extension_text_type" | "show_goals_in_statusbar"
+  >;
   options: Pick<BaseOptionsProps, "extension_text_types">;
 };
 
@@ -309,6 +322,7 @@ export const buildSections = (): SettingsSection[] => [
 const subsectionMap: Record<SectionId, SettingsSubsection[]> = {
   profile: [
     { id: "user_region", label: "Region" },
+    { id: "user_display_name", label: "Display name" },
     { id: "user_username", label: "Username" },
     { id: "user_email_addresses", label: "Email addresses" },
   ],
diff --git a/app/models/user.rb b/app/models/user.rb
index ea43b8f8c..acea26670 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -11,6 +11,7 @@ class User < ApplicationRecord
   has_subscriptions
 
   USERNAME_MAX_LENGTH = 21 # going over 21 overflows the navbar
+  DISPLAY_NAME_MAX_LENGTH = 80
 
   has_paper_trail
 
@@ -18,6 +19,7 @@ class User < ApplicationRecord
   after_create_commit :schedule_onboarding_check_in_email
   after_update_commit :clear_leaderboard_page_cache, if: :saved_change_to_leaderboard_shadowban_state?
   before_validation :normalize_username
+  before_validation :normalize_display_name_override
   encrypts :slack_access_token, :github_access_token, :hca_access_token
 
   validates :slack_uid, uniqueness: true, allow_nil: true
@@ -29,6 +31,7 @@ class User < ApplicationRecord
     format: { with: /\A[A-Za-z0-9_-]+\z/, message: "may only include letters, numbers, '-', and '_'" },
     uniqueness: { case_sensitive: false, message: "has already been taken" },
     allow_nil: true
+  validates :display_name_override, length: { maximum: DISPLAY_NAME_MAX_LENGTH }, allow_nil: true
   validates :leaderboard_shadowban_reason, presence: true, if: :leaderboard_shadowbanned?
   validate :username_must_be_visible
 
@@ -306,6 +309,9 @@ def avatar_url
   end
 
   def display_name
+    name = display_name_override.presence
+    return name if name.present?
+
     name = slack_username || github_username || username
     return name if name.present?
     email = email_addresses&.first&.email
@@ -394,4 +400,10 @@ def username_must_be_visible
     return unless instance_variable_defined?(:@username_cleared_for_invisible) && @username_cleared_for_invisible
     errors.add(:username, "must include visible characters")
   end
+
+  def normalize_display_name_override
+    return if display_name_override.nil?
+
+    self.display_name_override = display_name_override.gsub(/\p{Cf}/, "").strip.presence
+  end
 end
diff --git a/app/services/profile_og_image_generator.rb b/app/services/profile_og_image_generator.rb
index d6a663e8f..c1f24bc9f 100644
--- a/app/services/profile_og_image_generator.rb
+++ b/app/services/profile_og_image_generator.rb
@@ -75,7 +75,7 @@ def self.template
     end
 
     def display_name
-      @display_name ||= user.display_name_override.presence || user.display_name
+      @display_name ||= user.display_name
     end
 
     def username
diff --git a/config/initializers/js_from_routes.rb b/config/initializers/js_from_routes.rb
index 28eaec964..5323a9aca 100644
--- a/config/initializers/js_from_routes.rb
+++ b/config/initializers/js_from_routes.rb
@@ -46,6 +46,7 @@ module JsFromRoutes
     my_settings
     my_settings_profile
     my_settings_profile_region
+    my_settings_profile_display_name
     my_settings_profile_username
     my_settings_setup
     my_settings_appearance
diff --git a/config/routes.rb b/config/routes.rb
index 2ff3afddb..379ff1ca7 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -155,6 +155,7 @@ def matches?(request)
   # Profile
   get "my/settings/profile", to: "settings/profile#show", as: :my_settings_profile
   patch "my/settings/profile/region", to: "settings/profile#update_region", as: :my_settings_profile_region
+  patch "my/settings/profile/display_name", to: "settings/profile#update_display_name", as: :my_settings_profile_display_name
   patch "my/settings/profile/username", to: "settings/profile#update_username", as: :my_settings_profile_username
 
   # Setup
diff --git a/test/controllers/settings_profile_controller_test.rb b/test/controllers/settings_profile_controller_test.rb
index 8d0290e8b..e1d04f31b 100644
--- a/test/controllers/settings_profile_controller_test.rb
+++ b/test/controllers/settings_profile_controller_test.rb
@@ -25,6 +25,43 @@ class SettingsProfileControllerTest < ActionDispatch::IntegrationTest
     assert_nil user.reload.country_code
   end
 
+  test "display name update persists override" do
+    user = users(:one)
+    user.update!(slack_username: "slack_name")
+    sign_in_as(user)
+
+    patch my_settings_profile_display_name_path, params: { user: { display_name_override: "Custom Name" } }
+
+    assert_response :redirect
+    assert_redirected_to my_settings_profile_path
+    assert_equal "Custom Name", user.reload.display_name_override
+    assert_equal "Custom Name", user.display_name
+  end
+
+  test "display name update clears blank override" do
+    user = users(:one)
+    user.update!(display_name_override: "Custom Name", slack_username: "slack_name")
+    sign_in_as(user)
+
+    patch my_settings_profile_display_name_path, params: { user: { display_name_override: " " } }
+
+    assert_response :redirect
+    assert_nil user.reload.display_name_override
+    assert_equal "slack_name", user.display_name
+  end
+
+  test "display name update with invalid display name returns unprocessable entity" do
+    user = users(:one)
+    sign_in_as(user)
+
+    patch my_settings_profile_display_name_path, params: {
+      user: { display_name_override: "a" * (User::DISPLAY_NAME_MAX_LENGTH + 1) }
+    }
+
+    assert_response :unprocessable_entity
+    assert_inertia_component "Users/Settings/Profile"
+  end
+
   test "username update with invalid username returns unprocessable entity" do
     user = users(:one)
     user.update!(username: "good_name")
diff --git a/test/models/user_test.rb b/test/models/user_test.rb
index 025265ecf..678b36485 100644
--- a/test/models/user_test.rb
+++ b/test/models/user_test.rb
@@ -62,6 +62,46 @@ class UserTest < ActiveSupport::TestCase
     assert_equal "User;#{user.id}", user.flipper_id
   end
 
+  test "display name override takes precedence over synced provider names" do
+    user = User.create!(
+      timezone: "UTC",
+      username: "profile_user",
+      slack_username: "slack_user",
+      github_username: "github_user",
+      display_name_override: "Custom Name"
+    )
+
+    assert_equal "Custom Name", user.display_name
+  end
+
+  test "display name override is normalized before validation" do
+    user = User.create!(timezone: "UTC", slack_username: "slack_user", display_name_override: "  Custom Name  ")
+
+    assert_equal "Custom Name", user.display_name_override
+  end
+
+  test "slack profile sync does not replace display name override" do
+    user = User.create!(
+      timezone: "UTC",
+      slack_username: "old_slack",
+      display_name_override: "Custom Name"
+    )
+
+    user.apply_slack_profile_attributes({
+      "name" => "fallback",
+      "profile" => {
+        "display_name_normalized" => "new_slack",
+        "real_name_normalized" => "Real Name",
+        "image_192" => "https://example.com/avatar.png"
+      }
+    })
+    user.save!
+
+    assert_equal "new_slack", user.reload.slack_username
+    assert_equal "Custom Name", user.display_name_override
+    assert_equal "Custom Name", user.display_name
+  end
+
   test "active remote heartbeat import run only counts remote imports" do
     user = User.create!(timezone: "UTC")