diff --git a/src/Web.Api.Tests/Features/Users/AdminUsersControllerTests.cs b/src/Web.Api.Tests/Features/Users/AdminUsersControllerTests.cs
new file mode 100644
index 00000000..b4d93cff
--- /dev/null
+++ b/src/Web.Api.Tests/Features/Users/AdminUsersControllerTests.cs
@@ -0,0 +1,132 @@
+using System.Linq;
+using System.Threading.Tasks;
+using Domain.Enums;
+using TestUtils.Auth;
+using TestUtils.Db;
+using TestUtils.Fakes;
+using Web.Api.Features.Users;
+using Web.Api.Features.Users.SearchUsersForAdmin;
+using Xunit;
+
+namespace Web.Api.Tests.Features.Users;
+
+public class AdminUsersControllerTests
+{
+    [Fact]
+    public async Task All_WithEmailFilter_ReturnsMatchingUsers()
+    {
+        await using var context = new InMemoryDatabaseContext();
+        var admin = await new UserFake(Role.Admin).PleaseAsync(context);
+        var user1 = await new UserFake(Role.Interviewer, userName: "john.doe@example.com").PleaseAsync(context);
+        var user2 = await new UserFake(Role.Interviewer, userName: "jane.smith@example.com").PleaseAsync(context);
+
+        var controller = new AdminUsersController(
+            new FakeAuth(admin),
+            context);
+
+        var queryParams = new SearchUsersForAdminQueryParams
+        {
+            Email = "john"
+        };
+
+        context.ChangeTracker.Clear();
+        var result = await controller.All(queryParams);
+
+        Assert.Single(result.Results);
+        Assert.Equal(user1.Id, result.Results.First().Id);
+    }
+
+    [Fact]
+    public async Task All_WithUnsubscribeFilter_ReturnsMatchingUsers()
+    {
+        await using var context = new InMemoryDatabaseContext();
+        var admin = await new UserFake(Role.Admin).PleaseAsync(context);
+        var user1 = await new UserFake(Role.Interviewer).WithUnsubscribeMeFromAll(true).PleaseAsync(context);
+        var user2 = await new UserFake(Role.Interviewer).WithUnsubscribeMeFromAll(false).PleaseAsync(context);
+
+        var controller = new AdminUsersController(
+            new FakeAuth(admin),
+            context);
+
+        var queryParams = new SearchUsersForAdminQueryParams
+        {
+            UnsubscribeMeFromAll = true
+        };
+
+        context.ChangeTracker.Clear();
+        var result = await controller.All(queryParams);
+
+        Assert.Single(result.Results);
+        Assert.Equal(user1.Id, result.Results.First().Id);
+    }
+
+    [Fact]
+    public async Task All_WithBothFilters_ReturnsMatchingUsers()
+    {
+        await using var context = new InMemoryDatabaseContext();
+        var admin = await new UserFake(Role.Admin).PleaseAsync(context);
+        var user1 = await new UserFake(Role.Interviewer, userName: "john.doe@example.com").WithUnsubscribeMeFromAll(true).PleaseAsync(context);
+        var user2 = await new UserFake(Role.Interviewer, userName: "john.smith@example.com").WithUnsubscribeMeFromAll(false).PleaseAsync(context);
+        var user3 = await new UserFake(Role.Interviewer, userName: "jane.doe@example.com").WithUnsubscribeMeFromAll(true).PleaseAsync(context);
+
+        var controller = new AdminUsersController(
+            new FakeAuth(admin),
+            context);
+
+        var queryParams = new SearchUsersForAdminQueryParams
+        {
+            Email = "john",
+            UnsubscribeMeFromAll = true
+        };
+
+        context.ChangeTracker.Clear();
+        var result = await controller.All(queryParams);
+
+        Assert.Single(result.Results);
+        Assert.Equal(user1.Id, result.Results.First().Id);
+    }
+
+    [Fact]
+    public async Task All_WithNoFilters_ReturnsAllActiveUsers()
+    {
+        await using var context = new InMemoryDatabaseContext();
+        var admin = await new UserFake(Role.Admin).PleaseAsync(context);
+        var user1 = await new UserFake(Role.Interviewer).PleaseAsync(context);
+        var user2 = await new UserFake(Role.Interviewer).PleaseAsync(context);
+
+        var controller = new AdminUsersController(
+            new FakeAuth(admin),
+            context);
+
+        var queryParams = new SearchUsersForAdminQueryParams();
+
+        context.ChangeTracker.Clear();
+        var result = await controller.All(queryParams);
+
+        // Should return all 3 users (admin + 2 test users)
+        Assert.Equal(3, result.Results.Count);
+    }
+
+    [Fact]
+    public async Task All_WithEmptyEmailFilter_ReturnsAllActiveUsers()
+    {
+        await using var context = new InMemoryDatabaseContext();
+        var admin = await new UserFake(Role.Admin).PleaseAsync(context);
+        var user1 = await new UserFake(Role.Interviewer).PleaseAsync(context);
+
+        var controller = new AdminUsersController(
+            new FakeAuth(admin),
+            context);
+
+        var queryParams = new SearchUsersForAdminQueryParams
+        {
+            Email = string.Empty // Empty string should not filter
+        };
+
+        context.ChangeTracker.Clear();
+        var result = await controller.All(queryParams);
+
+        // Should return all users since empty email filter is ignored
+        Assert.Equal(2, result.Results.Count);
+    }
+}
\ No newline at end of file
diff --git a/src/Web.Api/Features/Users/AdminUsersController.cs b/src/Web.Api/Features/Users/AdminUsersController.cs
index 67648a93..630740b9 100644
--- a/src/Web.Api/Features/Users/AdminUsersController.cs
+++ b/src/Web.Api/Features/Users/AdminUsersController.cs
@@ -13,6 +13,7 @@
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 using Web.Api.Features.Users.Models;
+using Web.Api.Features.Users.SearchUsersForAdmin;
 using Web.Api.Setup.Attributes;
 
 namespace Web.Api.Features.Users;
@@ -35,19 +36,23 @@ public AdminUsersController(
 
     [HttpGet("")]
     public async Task<Pageable<UserDto>> All(
-        [FromQuery] PageModel pageParams = null)
+        [FromQuery] SearchUsersForAdminQueryParams queryParams = null)
     {
         await _auth.HasRoleOrFailAsync(Role.Admin);
 
-        pageParams ??= PageModel.Default;
+        queryParams ??= new SearchUsersForAdminQueryParams();
+
+        var emailFilter = queryParams.Email?.Trim().ToLowerInvariant();
         return await _context.Users
             .AsNoTracking()
             .Include(x => x.UserRoles)
             .Include(x => x.Salaries)
             .Where(x => x.DeletedAt == null)
+            .When(queryParams.HasEmailFilter(), x => x.Email != null && x.Email.ToLower().Contains(emailFilter))
+            .When(queryParams.HasUnsubscribeFilter(), x => x.UnsubscribeMeFromAll == queryParams.UnsubscribeMeFromAll.Value)
             .OrderBy(x => x.CreatedAt)
             .Select(UserDto.Transformation)
-            .AsPaginatedAsync(pageParams);
+            .AsPaginatedAsync(queryParams);
     }
 
     [HttpGet("{id:long}")]
diff --git a/src/Web.Api/Features/Users/SearchUsersForAdmin/SearchUsersForAdminQueryParams.cs b/src/Web.Api/Features/Users/SearchUsersForAdmin/SearchUsersForAdminQueryParams.cs
new file mode 100644
index 00000000..c1109279
--- /dev/null
+++ b/src/Web.Api/Features/Users/SearchUsersForAdmin/SearchUsersForAdminQueryParams.cs
@@ -0,0 +1,16 @@
+using Domain.ValueObjects.Pagination;
+
+namespace Web.Api.Features.Users.SearchUsersForAdmin;
+
+public record SearchUsersForAdminQueryParams : PageModel
+{
+    public string Email { get; init; } = string.Empty;
+
+    public bool? UnsubscribeMeFromAll { get; init; }
+
+    public bool HasEmailFilter()
+        => !string.IsNullOrWhiteSpace(Email);
+
+    public bool HasUnsubscribeFilter()
+        => UnsubscribeMeFromAll.HasValue;
+}
\ No newline at end of file