diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/BooleanSetting.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/BooleanSetting.kt
index 5ccc6b4aad..2d2a0065b4 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/BooleanSetting.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/BooleanSetting.kt
@@ -14,6 +14,7 @@ enum class BooleanSetting(
     MAIN_SKIP_IPL(Settings.FILE_DOLPHIN, Settings.SECTION_INI_CORE, "SkipIPL", true),
     MAIN_DSP_HLE(Settings.FILE_DOLPHIN, Settings.SECTION_INI_CORE, "DSPHLE", true),
     MAIN_FASTMEM(Settings.FILE_DOLPHIN, Settings.SECTION_INI_CORE, "Fastmem", true),
+    MAIN_FASTMEM_ARENA(Settings.FILE_DOLPHIN, Settings.SECTION_INI_CORE, "FastmemArena", true),
     MAIN_CPU_THREAD(Settings.FILE_DOLPHIN, Settings.SECTION_INI_CORE, "CPUThread", true),
     MAIN_SYNC_ON_SKIP_IDLE(
         Settings.FILE_DOLPHIN,
@@ -897,6 +898,7 @@ enum class BooleanSetting(
     companion object {
         private val NOT_RUNTIME_EDITABLE_ARRAY = arrayOf(
             MAIN_DSP_HLE,
+            MAIN_FASTMEM_ARENA,
             MAIN_CPU_THREAD,
             MAIN_ENABLE_CHEATS,
             MAIN_OVERRIDE_REGION_SETTINGS,
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.kt
index 099ae980e6..b85a3999cc 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.kt
@@ -1941,6 +1941,14 @@ class SettingsFragmentPresenter(
                 0
             )
         )
+        sl.add(
+            InvertedSwitchSetting(
+                context,
+                BooleanSetting.MAIN_FASTMEM_ARENA,
+                R.string.debug_fastmem_arena,
+                0
+            )
+        )
 
         sl.add(HeaderSetting(context, R.string.debug_jit_header, 0))
         sl.add(
diff --git a/Source/Android/app/src/main/res/values/strings.xml b/Source/Android/app/src/main/res/values/strings.xml
index a81cb58a59..044c1ad65d 100644
--- a/Source/Android/app/src/main/res/values/strings.xml
+++ b/Source/Android/app/src/main/res/values/strings.xml
@@ -399,6 +399,7 @@
     <string name="debug_submenu">Debug</string>
     <string name="debug_warning">Warning: Debug settings will slow emulation</string>
     <string name="debug_fastmem">Disable Fastmem</string>
+    <string name="debug_fastmem_arena">Disable Fastmem Arena</string>
     <string name="debug_jit_header">Jit</string>
     <string name="debug_jitoff">Jit Disabled</string>
     <string name="debug_jitloadstoreoff">Jit Load Store Disabled</string>
diff --git a/Source/Core/Core/Config/MainSettings.cpp b/Source/Core/Core/Config/MainSettings.cpp
index be901fe289..4e545fc402 100644
--- a/Source/Core/Core/Config/MainSettings.cpp
+++ b/Source/Core/Core/Config/MainSettings.cpp
@@ -38,6 +38,7 @@ const Info<PowerPC::CPUCore> MAIN_CPU_CORE{{System::Main, "Core", "CPUCore"},
                                            PowerPC::DefaultCPUCore()};
 const Info<bool> MAIN_JIT_FOLLOW_BRANCH{{System::Main, "Core", "JITFollowBranch"}, true};
 const Info<bool> MAIN_FASTMEM{{System::Main, "Core", "Fastmem"}, true};
+const Info<bool> MAIN_FASTMEM_ARENA{{System::Main, "Core", "FastmemArena"}, true};
 const Info<bool> MAIN_ACCURATE_CPU_CACHE{{System::Main, "Core", "AccurateCPUCache"}, false};
 const Info<bool> MAIN_DSP_HLE{{System::Main, "Core", "DSPHLE"}, true};
 const Info<int> MAIN_MAX_FALLBACK{{System::Main, "Core", "MaxFallback"}, 100};
diff --git a/Source/Core/Core/Config/MainSettings.h b/Source/Core/Core/Config/MainSettings.h
index 0d591ee5db..b591a00de4 100644
--- a/Source/Core/Core/Config/MainSettings.h
+++ b/Source/Core/Core/Config/MainSettings.h
@@ -56,6 +56,7 @@ extern const Info<bool> MAIN_SKIP_IPL;
 extern const Info<PowerPC::CPUCore> MAIN_CPU_CORE;
 extern const Info<bool> MAIN_JIT_FOLLOW_BRANCH;
 extern const Info<bool> MAIN_FASTMEM;
+extern const Info<bool> MAIN_FASTMEM_ARENA;
 extern const Info<bool> MAIN_ACCURATE_CPU_CACHE;
 // Should really be in the DSP section, but we're kind of stuck with bad decisions made in the past.
 extern const Info<bool> MAIN_DSP_HLE;
diff --git a/Source/Core/Core/PowerPC/Jit64/Jit.cpp b/Source/Core/Core/PowerPC/Jit64/Jit.cpp
index fa96bd4b20..ea65a5c6f0 100644
--- a/Source/Core/Core/PowerPC/Jit64/Jit.cpp
+++ b/Source/Core/Core/PowerPC/Jit64/Jit.cpp
@@ -251,8 +251,7 @@ bool Jit64::BackPatch(SContext* ctx)
 
 void Jit64::Init()
 {
-  auto& memory = m_system.GetMemory();
-  jo.fastmem_arena = memory.InitFastmemArena();
+  InitFastmemArena();
 
   RefreshConfig();
 
diff --git a/Source/Core/Core/PowerPC/JitArm64/Jit.cpp b/Source/Core/Core/PowerPC/JitArm64/Jit.cpp
index 4c927ed427..436229c07b 100644
--- a/Source/Core/Core/PowerPC/JitArm64/Jit.cpp
+++ b/Source/Core/Core/PowerPC/JitArm64/Jit.cpp
@@ -47,8 +47,7 @@ JitArm64::~JitArm64() = default;
 
 void JitArm64::Init()
 {
-  auto& memory = m_system.GetMemory();
-  jo.fastmem_arena = memory.InitFastmemArena();
+  InitFastmemArena();
 
   RefreshConfig();
 
diff --git a/Source/Core/Core/PowerPC/JitCommon/JitBase.cpp b/Source/Core/Core/PowerPC/JitCommon/JitBase.cpp
index bcdafd9725..c1cce80401 100644
--- a/Source/Core/Core/PowerPC/JitCommon/JitBase.cpp
+++ b/Source/Core/Core/PowerPC/JitCommon/JitBase.cpp
@@ -140,6 +140,12 @@ void JitBase::RefreshConfig()
   jo.div_by_zero_exceptions = m_enable_div_by_zero_exceptions;
 }
 
+void JitBase::InitFastmemArena()
+{
+  auto& memory = m_system.GetMemory();
+  jo.fastmem_arena = Config::Get(Config::MAIN_FASTMEM_ARENA) && memory.InitFastmemArena();
+}
+
 void JitBase::InitBLROptimization()
 {
   m_enable_blr_optimization =
diff --git a/Source/Core/Core/PowerPC/JitCommon/JitBase.h b/Source/Core/Core/PowerPC/JitCommon/JitBase.h
index 6c95559438..00fea6ef84 100644
--- a/Source/Core/Core/PowerPC/JitCommon/JitBase.h
+++ b/Source/Core/Core/PowerPC/JitCommon/JitBase.h
@@ -166,6 +166,8 @@ protected:
   bool DoesConfigNeedRefresh();
   void RefreshConfig();
 
+  void InitFastmemArena();
+
   void InitBLROptimization();
   void ProtectStack();
   void UnprotectStack();
diff --git a/Source/Core/DolphinQt/MenuBar.cpp b/Source/Core/DolphinQt/MenuBar.cpp
index ad8428bee3..2b68cf640d 100644
--- a/Source/Core/DolphinQt/MenuBar.cpp
+++ b/Source/Core/DolphinQt/MenuBar.cpp
@@ -139,6 +139,7 @@ void MenuBar::OnEmulationStateChanged(Core::State state)
   m_jit_interpreter_core->setEnabled(running);
   m_jit_block_linking->setEnabled(!running);
   m_jit_disable_cache->setEnabled(!running);
+  m_jit_disable_fastmem_arena->setEnabled(!running);
   m_jit_clear_cache->setEnabled(running);
   m_jit_log_coverage->setEnabled(!running);
   m_jit_search_instruction->setEnabled(running);
@@ -847,6 +848,12 @@ void MenuBar::AddJITMenu()
   connect(m_jit_disable_fastmem, &QAction::toggled,
           [](bool enabled) { Config::SetBaseOrCurrent(Config::MAIN_FASTMEM, !enabled); });
 
+  m_jit_disable_fastmem_arena = m_jit->addAction(tr("Disable Fastmem Arena"));
+  m_jit_disable_fastmem_arena->setCheckable(true);
+  m_jit_disable_fastmem_arena->setChecked(!Config::Get(Config::MAIN_FASTMEM_ARENA));
+  connect(m_jit_disable_fastmem_arena, &QAction::toggled,
+          [](bool enabled) { Config::SetBaseOrCurrent(Config::MAIN_FASTMEM_ARENA, !enabled); });
+
   m_jit_clear_cache = m_jit->addAction(tr("Clear Cache"), this, &MenuBar::ClearCache);
 
   m_jit->addSeparator();
diff --git a/Source/Core/DolphinQt/MenuBar.h b/Source/Core/DolphinQt/MenuBar.h
index a5c5730b6b..e505160afa 100644
--- a/Source/Core/DolphinQt/MenuBar.h
+++ b/Source/Core/DolphinQt/MenuBar.h
@@ -264,6 +264,7 @@ private:
   QAction* m_jit_block_linking;
   QAction* m_jit_disable_cache;
   QAction* m_jit_disable_fastmem;
+  QAction* m_jit_disable_fastmem_arena;
   QAction* m_jit_clear_cache;
   QAction* m_jit_log_coverage;
   QAction* m_jit_search_instruction;