diff --git a/ChessCubing.App/Pages/ApplicationPage.razor b/ChessCubing.App/Pages/ApplicationPage.razor
index eba147b..11eebd3 100644
--- a/ChessCubing.App/Pages/ApplicationPage.razor
+++ b/ChessCubing.App/Pages/ApplicationPage.razor
@@ -1,8 +1,15 @@
 @page "/application"
 @page "/application.html"
+@using System.Net
+@using System.Net.Http.Json
+@using System.Security.Claims
+@using ChessCubing.App.Models.Users
+@implements IDisposable
 @inject BrowserBridge Browser
 @inject MatchStore Store
 @inject NavigationManager Navigation
+@inject AuthenticationStateProvider AuthenticationStateProvider
+@inject HttpClient Http
 
 <PageTitle>ChessCubing Arena | Application</PageTitle>
 <PageBody Page="setup" BodyClass="@SetupBodyClass" />
@@ -137,13 +144,39 @@
                     </div>
                 </fieldset>
 
-                <label class="field">
-                    <span>Joueur blanc</span>
+                <label class="field player-name-field">
+                    <div class="field-heading">
+                        <span class="field-label-text">Joueur blanc</span>
+
+                        @if (CanUseConnectedPlayerName)
+                        {
+                            <button class="button ghost small icon-button player-fill-button"
+                                    type="button"
+                                    title="@BuildPrefillTitle("blanc")"
+                                    aria-label="@BuildPrefillTitle("blanc")"
+                                    @onclick="FillWhiteWithConnectedPlayer">
+                                <span class="material-icons action-icon" aria-hidden="true">account_circle</span>
+                            </button>
+                        }
+                    </div>
                     <input @bind="Form.WhiteName" @bind:event="oninput" name="whiteName" type="text" maxlength="40" placeholder="Blanc" />
                 </label>
 
-                <label class="field">
-                    <span>Joueur noir</span>
+                <label class="field player-name-field">
+                    <div class="field-heading">
+                        <span class="field-label-text">Joueur noir</span>
+
+                        @if (CanUseConnectedPlayerName)
+                        {
+                            <button class="button ghost small icon-button player-fill-button"
+                                    type="button"
+                                    title="@BuildPrefillTitle("noir")"
+                                    aria-label="@BuildPrefillTitle("noir")"
+                                    @onclick="FillBlackWithConnectedPlayer">
+                                <span class="material-icons action-icon" aria-hidden="true">account_circle</span>
+                            </button>
+                        }
+                    </div>
                     <input @bind="Form.BlackName" @bind:event="oninput" name="blackName" type="text" maxlength="40" placeholder="Noir" />
                 </label>
 
@@ -254,10 +287,12 @@
 @code {
     private SetupFormModel Form { get; set; } = new();
     private bool _ready;
+    private string? ConnectedPlayerName;
 
     private MatchState? CurrentMatch => Store.Current;
 
     private string SetupBodyClass => UsesMoveLimit ? string.Empty : "time-setup-mode";
+    private bool CanUseConnectedPlayerName => !string.IsNullOrWhiteSpace(ConnectedPlayerName);
 
     private bool UsesMoveLimit => MatchEngine.UsesMoveLimit(Form.Mode);
 
@@ -286,6 +321,12 @@
             ? $"Quota actif : {CurrentPreset.Quota} coups par joueur."
             : $"Quota actif : {CurrentPreset.Quota} coups par joueur et par Block.";
 
+    protected override async Task OnInitializedAsync()
+    {
+        AuthenticationStateProvider.AuthenticationStateChanged += HandleAuthenticationStateChanged;
+        await LoadConnectedPlayerAsync();
+    }
+
     protected override async Task OnAfterRenderAsync(bool firstRender)
     {
         if (!firstRender)
@@ -298,6 +339,51 @@
         StateHasChanged();
     }
 
+    private void HandleAuthenticationStateChanged(Task<AuthenticationState> authenticationStateTask)
+        => _ = InvokeAsync(LoadConnectedPlayerAsync);
+
+    private async Task LoadConnectedPlayerAsync()
+    {
+        string? fallbackName = null;
+
+        try
+        {
+            var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
+            var user = authState.User;
+
+            if (user.Identity?.IsAuthenticated != true)
+            {
+                ConnectedPlayerName = null;
+                await InvokeAsync(StateHasChanged);
+                return;
+            }
+
+            fallbackName = BuildConnectedPlayerFallback(user);
+
+            var response = await Http.GetAsync("api/users/me");
+            if (!response.IsSuccessStatusCode)
+            {
+                ConnectedPlayerName = response.StatusCode is HttpStatusCode.Unauthorized or HttpStatusCode.Forbidden
+                    ? null
+                    : fallbackName;
+
+                await InvokeAsync(StateHasChanged);
+                return;
+            }
+
+            var profile = await response.Content.ReadFromJsonAsync<UserProfileResponse>();
+            ConnectedPlayerName = !string.IsNullOrWhiteSpace(profile?.DisplayName)
+                ? profile.DisplayName
+                : fallbackName;
+        }
+        catch
+        {
+            ConnectedPlayerName = fallbackName;
+        }
+
+        await InvokeAsync(StateHasChanged);
+    }
+
     private async Task HandleSubmit()
     {
         await Store.EnsureLoadedAsync();
@@ -320,6 +406,26 @@
     private void LoadDemo()
         => Form = SetupFormModel.CreateDemo();
 
+    private void FillWhiteWithConnectedPlayer()
+    {
+        if (!CanUseConnectedPlayerName)
+        {
+            return;
+        }
+
+        Form.WhiteName = ConnectedPlayerName!;
+    }
+
+    private void FillBlackWithConnectedPlayer()
+    {
+        if (!CanUseConnectedPlayerName)
+        {
+            return;
+        }
+
+        Form.BlackName = ConnectedPlayerName!;
+    }
+
     private void SetMode(string mode)
         => Form.Mode = mode;
 
@@ -360,4 +466,20 @@
 
         return match.Phase == MatchEngine.PhaseCube ? "Page cube prete" : "Page chrono prete";
     }
+
+    private string BuildPrefillTitle(string color)
+        => $"Utiliser mon nom cote {color}";
+
+    private static string? BuildConnectedPlayerFallback(ClaimsPrincipal user)
+        => FirstNonEmpty(
+            user.FindFirst("name")?.Value,
+            user.FindFirst(ClaimTypes.Name)?.Value,
+            user.FindFirst("preferred_username")?.Value,
+            user.FindFirst(ClaimTypes.Email)?.Value);
+
+    private static string? FirstNonEmpty(params string?[] candidates)
+        => candidates.FirstOrDefault(candidate => !string.IsNullOrWhiteSpace(candidate));
+
+    public void Dispose()
+        => AuthenticationStateProvider.AuthenticationStateChanged -= HandleAuthenticationStateChanged;
 }
diff --git a/styles.css b/styles.css
index cfdab86..bb42609 100644
--- a/styles.css
+++ b/styles.css
@@ -414,6 +414,17 @@ p {
   gap: 0.45rem;
 }
 
+.field-heading {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.65rem;
+}
+
+.field-label-text {
+  font-weight: 700;
+}
+
 [hidden] {
   display: none !important;
 }
@@ -567,6 +578,20 @@ textarea:focus {
   gap: 0.75rem;
 }
 
+.player-name-field .field-heading {
+  margin-bottom: -0.1rem;
+}
+
+.player-fill-button {
+  flex: 0 0 auto;
+  padding: 0.42rem 0.48rem;
+  border-radius: 12px;
+}
+
+.player-fill-button .action-icon {
+  font-size: 1.05rem;
+}
+
 .side-panel {
   display: grid;
   gap: 1rem;
@@ -2380,11 +2405,16 @@ body.site-menu-hidden .site-menu-shell {
     gap: 0.25rem;
   }
 
+  body[data-page="setup"] .field-label-text,
   body[data-page="setup"] .field > span,
   body[data-page="setup"] legend {
     font-size: 0.9rem;
   }
 
+  body[data-page="setup"] .player-fill-button {
+    padding: 0.36rem 0.42rem;
+  }
+
   body[data-page="setup"] input,
   body[data-page="setup"] textarea {
     padding: 0.75rem 0.85rem;
@@ -2751,11 +2781,16 @@ body.site-menu-hidden .site-menu-shell {
     gap: 0.45rem;
   }
 
+  body[data-page="setup"] .field-label-text,
   body[data-page="setup"] .field > span,
   body[data-page="setup"] legend {
     font-size: 0.84rem;
   }
 
+  body[data-page="setup"] .player-fill-button {
+    padding: 0.34rem 0.4rem;
+  }
+
   body[data-page="setup"] input,
   body[data-page="setup"] textarea {
     padding: 0.68rem 0.75rem;