diff --git a/src/citra_qt/multiplayer/direct_connect.cpp b/src/citra_qt/multiplayer/direct_connect.cpp
index 5cfd3ced86..482679011a 100644
--- a/src/citra_qt/multiplayer/direct_connect.cpp
+++ b/src/citra_qt/multiplayer/direct_connect.cpp
@@ -33,6 +33,10 @@ DirectConnectWindow::DirectConnectWindow(QWidget* parent)
 
     ui->nickname->setValidator(validation.GetNickname());
     ui->nickname->setText(UISettings::values.nickname);
+    if (ui->nickname->text().isEmpty() && !Settings::values.citra_username.empty()) {
+        // Use Citra Web Service user name as nickname by default
+        ui->nickname->setText(QString::fromStdString(Settings::values.citra_username));
+    }
     ui->ip->setValidator(validation.GetIP());
     ui->ip->setText(UISettings::values.ip);
     ui->port->setValidator(validation.GetPort());
diff --git a/src/citra_qt/multiplayer/host_room.cpp b/src/citra_qt/multiplayer/host_room.cpp
index 8366f8747f..d08866b13a 100644
--- a/src/citra_qt/multiplayer/host_room.cpp
+++ b/src/citra_qt/multiplayer/host_room.cpp
@@ -54,6 +54,10 @@ HostRoomWindow::HostRoomWindow(QWidget* parent, QStandardItemModel* list,
 
     // Restore the settings:
     ui->username->setText(UISettings::values.room_nickname);
+    if (ui->username->text().isEmpty() && !Settings::values.citra_username.empty()) {
+        // Use Citra Web Service user name as nickname by default
+        ui->username->setText(QString::fromStdString(Settings::values.citra_username));
+    }
     ui->room_name->setText(UISettings::values.room_name);
     ui->port->setText(UISettings::values.room_port);
     ui->max_player->setValue(UISettings::values.max_player);
diff --git a/src/citra_qt/multiplayer/lobby.cpp b/src/citra_qt/multiplayer/lobby.cpp
index edb73c6c8e..c40c003759 100644
--- a/src/citra_qt/multiplayer/lobby.cpp
+++ b/src/citra_qt/multiplayer/lobby.cpp
@@ -48,6 +48,10 @@ Lobby::Lobby(QWidget* parent, QStandardItemModel* list,
 
     ui->nickname->setValidator(validation.GetNickname());
     ui->nickname->setText(UISettings::values.nickname);
+    if (ui->nickname->text().isEmpty() && !Settings::values.citra_username.empty()) {
+        // Use Citra Web Service user name as nickname by default
+        ui->nickname->setText(QString::fromStdString(Settings::values.citra_username));
+    }
 
     // UI Buttons
     connect(ui->refresh_list, &QPushButton::pressed, this, &Lobby::RefreshLobby);