diff --git a/Source/Core/DolphinQt2/Debugger/CodeWidget.cpp b/Source/Core/DolphinQt2/Debugger/CodeWidget.cpp
index ec71d0273e..4cbaa1713a 100644
--- a/Source/Core/DolphinQt2/Debugger/CodeWidget.cpp
+++ b/Source/Core/DolphinQt2/Debugger/CodeWidget.cpp
@@ -310,8 +310,8 @@ void CodeWidget::UpdateFunctionCalls(Symbol* symbol)
 
     if (call_symbol)
     {
-      auto* item = new QListWidgetItem(QString::fromStdString(
-          StringFromFormat("> %s (%08x)", call_symbol->name.c_str(), addr).c_str()));
+      auto* item = new QListWidgetItem(
+          QString::fromStdString(StringFromFormat("> %s (%08x)", call_symbol->name.c_str(), addr)));
       item->setData(Qt::UserRole, addr);
 
       m_function_calls_list->addItem(item);
@@ -331,7 +331,7 @@ void CodeWidget::UpdateFunctionCallers(Symbol* symbol)
     if (caller_symbol)
     {
       auto* item = new QListWidgetItem(QString::fromStdString(
-          StringFromFormat("< %s (%08x)", caller_symbol->name.c_str(), addr).c_str()));
+          StringFromFormat("< %s (%08x)", caller_symbol->name.c_str(), addr)));
       item->setData(Qt::UserRole, addr);
 
       m_function_callers_list->addItem(item);
diff --git a/Source/Core/DolphinQt2/MainWindow.cpp b/Source/Core/DolphinQt2/MainWindow.cpp
index 8b9b22d33e..0f301d904c 100644
--- a/Source/Core/DolphinQt2/MainWindow.cpp
+++ b/Source/Core/DolphinQt2/MainWindow.cpp
@@ -928,7 +928,6 @@ bool MainWindow::NetPlayHost(const QString& game_id)
 
   const std::string traversal_host = Config::Get(Config::NETPLAY_TRAVERSAL_SERVER);
   const u16 traversal_port = Config::Get(Config::NETPLAY_TRAVERSAL_PORT);
-  const std::string nickname = Config::Get(Config::NETPLAY_NICKNAME);
 
   if (is_traversal)
     host_port = Config::Get(Config::NETPLAY_LISTEN_PORT);
diff --git a/Source/Core/DolphinQt2/MenuBar.cpp b/Source/Core/DolphinQt2/MenuBar.cpp
index c9f6641a70..a92255a2ef 100644
--- a/Source/Core/DolphinQt2/MenuBar.cpp
+++ b/Source/Core/DolphinQt2/MenuBar.cpp
@@ -929,7 +929,7 @@ void MenuBar::LoadSymbolMap()
     g_symbolDB.LoadMap(existing_map_file);
     QMessageBox::information(
         this, tr("Information"),
-        tr("Loaded symbols from '%1'").arg(QString::fromStdString(existing_map_file.c_str())));
+        tr("Loaded symbols from '%1'").arg(QString::fromStdString(existing_map_file)));
   }
 
   HLE::PatchFunctions();
@@ -978,7 +978,7 @@ void MenuBar::SaveCode()
   CBoot::FindMapFile(&existing_map_file, &writable_map_file);
 
   const std::string path =
-      writable_map_file.substr(0, writable_map_file.find_last_of(".")) + "_code.map";
+      writable_map_file.substr(0, writable_map_file.find_last_of('.')) + "_code.map";
 
   g_symbolDB.SaveCodeMap(path);
 }
diff --git a/Source/Core/DolphinQt2/NetPlay/MD5Dialog.cpp b/Source/Core/DolphinQt2/NetPlay/MD5Dialog.cpp
index b304b73adc..72fb4af5d5 100644
--- a/Source/Core/DolphinQt2/NetPlay/MD5Dialog.cpp
+++ b/Source/Core/DolphinQt2/NetPlay/MD5Dialog.cpp
@@ -109,7 +109,7 @@ void MD5Dialog::SetResult(int pid, const std::string& result)
   m_status_labels[pid]->setText(
       tr("%1[%2]: %3").arg(player_name, QString::number(pid), QString::fromStdString(result)));
 
-  if (m_last_result == "")
+  if (m_last_result.empty())
   {
     m_check_label->setText(tr("The hashes match!"));
     return;
diff --git a/Source/Core/DolphinQt2/Resources.cpp b/Source/Core/DolphinQt2/Resources.cpp
index d24f8cc184..636947c475 100644
--- a/Source/Core/DolphinQt2/Resources.cpp
+++ b/Source/Core/DolphinQt2/Resources.cpp
@@ -6,9 +6,7 @@
 #include <QIcon>
 #include <QPixmap>
 #include <QScreen>
-#include <QStringList>
 
-#include "Common/CommonPaths.h"
 #include "Common/FileUtil.h"
 #include "Core/ConfigManager.h"
 #include "DolphinQt2/Resources.h"
@@ -82,8 +80,6 @@ QPixmap Resources::GetScaledThemePixmap(const std::string& name)
 
 void Resources::Init()
 {
-  QString sys_dir = QString::fromStdString(File::GetSysDirectory() + RESOURCES_DIR + DIR_SEP);
-
   for (const std::string& platform :
        {"Platform_Gamecube", "Platform_Wii", "Platform_Wad", "Platform_File"})
   {
diff --git a/Source/Core/DolphinQt2/SearchBar.cpp b/Source/Core/DolphinQt2/SearchBar.cpp
index 71b38bf92f..f12b359727 100644
--- a/Source/Core/DolphinQt2/SearchBar.cpp
+++ b/Source/Core/DolphinQt2/SearchBar.cpp
@@ -4,7 +4,6 @@
 
 #include "DolphinQt2/SearchBar.h"
 
-#include <QCheckBox>
 #include <QHBoxLayout>
 #include <QLineEdit>
 #include <QPushButton>
diff --git a/Source/Core/DolphinQt2/SearchBar.h b/Source/Core/DolphinQt2/SearchBar.h
index 1a4ea7957d..7db5bc0f1a 100644
--- a/Source/Core/DolphinQt2/SearchBar.h
+++ b/Source/Core/DolphinQt2/SearchBar.h
@@ -6,7 +6,6 @@
 
 #include <QWidget>
 
-class QCheckBox;
 class QLineEdit;
 class QPushButton;
 
@@ -25,7 +24,5 @@ private:
   void ConnectWidgets();
 
   QLineEdit* m_search_edit;
-  QCheckBox* m_wii_check;
-  QCheckBox* m_gc_check;
   QPushButton* m_close_button;
 };
diff --git a/Source/Core/DolphinQt2/Settings/WiiPane.cpp b/Source/Core/DolphinQt2/Settings/WiiPane.cpp
index f14c194b4c..11137f6bb7 100644
--- a/Source/Core/DolphinQt2/Settings/WiiPane.cpp
+++ b/Source/Core/DolphinQt2/Settings/WiiPane.cpp
@@ -245,7 +245,6 @@ void WiiPane::OnUSBWhitelistAddButton()
 
 void WiiPane::OnUSBWhitelistRemoveButton()
 {
-  std::set<std::pair<u16, u16>> test_set = SConfig::GetInstance().m_usb_passthrough_devices;
   QString device = m_whitelist_usb_list->currentItem()->text().left(9);
   QString vid =
       QString(device.split(QString::fromStdString(":"), QString::SplitBehavior::KeepEmptyParts)[0]);