diff --git a/frontend/src/components/Common/GlobalSearch.tsx b/frontend/src/components/Common/GlobalSearch.tsx
new file mode 100644
index 0000000..ee7eae1
--- /dev/null
+++ b/frontend/src/components/Common/GlobalSearch.tsx
@@ -0,0 +1,218 @@
+import {
+  Badge,
+  Box,
+  Flex,
+  Icon,
+  Input,
+  InputGroup,
+  InputLeftElement,
+  Spinner,
+  Text,
+  useColorModeValue,
+  useOutsideClick,
+} from "@chakra-ui/react"
+import { useQuery, useQueryClient } from "@tanstack/react-query"
+import { Link } from "@tanstack/react-router"
+import { useMemo, useRef, useState } from "react"
+import type { IconType } from "react-icons"
+import { FiBriefcase, FiSearch, FiUser } from "react-icons/fi"
+
+import {
+  type ItemPublic,
+  ItemsService,
+  type UserPublic,
+  UsersService,
+} from "../../client"
+
+type SearchResult = {
+  id: string
+  title: string
+  subtitle: string
+  resource: "Item" | "User"
+  to: "/items" | "/admin"
+  icon: IconType
+}
+
+const matchesSearch = (
+  searchTerm: string,
+  values: Array<string | number | null | undefined>,
+) =>
+  values.some((value) => value?.toString().toLowerCase().includes(searchTerm))
+
+const buildItemResult = (item: ItemPublic): SearchResult => ({
+  id: `item-${item.id}`,
+  title: item.title,
+  subtitle: item.description || `Item #${item.id}`,
+  resource: "Item",
+  to: "/items",
+  icon: FiBriefcase,
+})
+
+const buildUserResult = (user: UserPublic): SearchResult => ({
+  id: `user-${user.id}`,
+  title: user.full_name || user.email,
+  subtitle: `${user.email} - ${user.is_superuser ? "Superuser" : "User"} - ${
+    user.is_active ? "Active" : "Inactive"
+  }`,
+  resource: "User",
+  to: "/admin",
+  icon: FiUser,
+})
+
+const GlobalSearch = () => {
+  const [query, setQuery] = useState("")
+  const [isOpen, setIsOpen] = useState(false)
+  const searchRef = useRef<HTMLDivElement>(null)
+  const queryClient = useQueryClient()
+  const currentUser = queryClient.getQueryData<UserPublic>(["currentUser"])
+
+  const panelBg = useColorModeValue("white", "ui.dark")
+  const borderColor = useColorModeValue("gray.200", "gray.600")
+  const hoverBg = useColorModeValue("gray.50", "gray.700")
+
+  useOutsideClick({
+    ref: searchRef,
+    handler: () => setIsOpen(false),
+  })
+
+  const { data: items, isFetching: isFetchingItems } = useQuery({
+    queryKey: ["items"],
+    queryFn: () => ItemsService.readItems({}),
+    staleTime: 30_000,
+  })
+
+  const { data: users, isFetching: isFetchingUsers } = useQuery({
+    queryKey: ["users"],
+    queryFn: () => UsersService.readUsers({}),
+    enabled: Boolean(currentUser?.is_superuser),
+    retry: false,
+    staleTime: 30_000,
+  })
+
+  const searchTerm = query.trim().toLowerCase()
+
+  const results = useMemo(() => {
+    if (!searchTerm) {
+      return []
+    }
+
+    const itemResults =
+      items?.data
+        .filter((item) =>
+          matchesSearch(searchTerm, [item.id, item.title, item.description]),
+        )
+        .map(buildItemResult) || []
+
+    const userResults =
+      currentUser?.is_superuser && users?.data
+        ? users.data
+            .filter((user) =>
+              matchesSearch(searchTerm, [
+                user.id,
+                user.email,
+                user.full_name,
+                user.is_superuser ? "superuser" : "user",
+                user.is_active ? "active" : "inactive",
+              ]),
+            )
+            .map(buildUserResult)
+        : []
+
+    return [...itemResults, ...userResults].slice(0, 8)
+  }, [currentUser?.is_superuser, items?.data, searchTerm, users?.data])
+
+  const isFetching =
+    isFetchingItems || (Boolean(currentUser?.is_superuser) && isFetchingUsers)
+  const shouldShowPanel = isOpen && Boolean(searchTerm)
+
+  const closeSearch = () => {
+    setQuery("")
+    setIsOpen(false)
+  }
+
+  return (
+    <Box ref={searchRef} position="relative" w={{ base: "100%", md: "sm" }}>
+      <InputGroup w="full">
+        <InputLeftElement pointerEvents="none">
+          <Icon as={FiSearch} color="ui.dim" />
+        </InputLeftElement>
+        <Input
+          type="text"
+          value={query}
+          placeholder="Search all resources"
+          fontSize={{ base: "sm", md: "inherit" }}
+          borderRadius="8px"
+          onChange={(event) => {
+            setQuery(event.target.value)
+            setIsOpen(true)
+          }}
+          onFocus={() => {
+            if (query.trim()) {
+              setIsOpen(true)
+            }
+          }}
+          onKeyDown={(event) => {
+            if (event.key === "Escape") {
+              setIsOpen(false)
+            }
+          }}
+        />
+      </InputGroup>
+
+      {shouldShowPanel && (
+        <Box
+          bg={panelBg}
+          borderColor={borderColor}
+          borderRadius="8px"
+          borderWidth="1px"
+          boxShadow="lg"
+          left={0}
+          maxH="320px"
+          mt={2}
+          overflowY="auto"
+          position="absolute"
+          right={0}
+          zIndex={20}
+        >
+          {results.length > 0 ? (
+            results.map((result) => (
+              <Flex
+                key={result.id}
+                as={Link}
+                to={result.to}
+                align="center"
+                gap={3}
+                px={3}
+                py={2}
+                _hover={{ bg: hoverBg }}
+                onClick={closeSearch}
+              >
+                <Icon as={result.icon} color="ui.main" />
+                <Box flex="1" minW={0}>
+                  <Text fontWeight="medium" noOfLines={1}>
+                    {result.title}
+                  </Text>
+                  <Text color="ui.dim" fontSize="sm" noOfLines={1}>
+                    {result.subtitle}
+                  </Text>
+                </Box>
+                <Badge>{result.resource}</Badge>
+              </Flex>
+            ))
+          ) : (
+            <Flex align="center" gap={2} px={3} py={3}>
+              {isFetching && <Spinner color="ui.main" size="sm" />}
+              <Text color="ui.dim" fontSize="sm">
+                {isFetching
+                  ? "Searching resources..."
+                  : "No matching resources"}
+              </Text>
+            </Flex>
+          )}
+        </Box>
+      )}
+    </Box>
+  )
+}
+
+export default GlobalSearch
diff --git a/frontend/src/components/Common/Navbar.tsx b/frontend/src/components/Common/Navbar.tsx
index edcb3d0..d3057f8 100644
--- a/frontend/src/components/Common/Navbar.tsx
+++ b/frontend/src/components/Common/Navbar.tsx
@@ -3,6 +3,7 @@ import { FaPlus } from "react-icons/fa"
 
 import AddUser from "../Admin/AddUser"
 import AddItem from "../Items/AddItem"
+import GlobalSearch from "./GlobalSearch"
 
 interface NavbarProps {
   type: string
@@ -14,17 +15,18 @@ const Navbar = ({ type }: NavbarProps) => {
 
   return (
     <>
-      <Flex py={8} gap={4}>
-        {/* TODO: Complete search functionality */}
-        {/* <InputGroup w={{ base: '100%', md: 'auto' }}>
-                    <InputLeftElement pointerEvents='none'>
-                        <Icon as={FaSearch} color='ui.dim' />
-                    </InputLeftElement>
-                    <Input type='text' placeholder='Search' fontSize={{ base: 'sm', md: 'inherit' }} borderRadius='8px' />
-                </InputGroup> */}
+      <Flex
+        py={8}
+        gap={4}
+        align={{ base: "stretch", sm: "center" }}
+        direction={{ base: "column", sm: "row" }}
+        justify="space-between"
+      >
+        <GlobalSearch />
         <Button
           variant="primary"
           gap={1}
+          alignSelf={{ base: "stretch", sm: "auto" }}
           fontSize={{ base: "sm", md: "inherit" }}
           onClick={type === "User" ? addUserModal.onOpen : addItemModal.onOpen}
         >