diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8ba74b58689..a442a012f59 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -26,6 +26,7 @@ option(ENABLE_ALL_THE_DEBUG_MACROS "Enable all debug macros to validate they sti
 option(ENABLE_COMPILETIME_FORMAT_CHECK "Enable compiletime format string checks" ON)
 option(ENABLE_PCI_IDS_DOWNLOAD "Enable download of the pci.ids database at build time" ON)
 option(BUILD_LAGOM "Build parts of the system targeting the host OS for fuzzing/testing" OFF)
+option(PRECOMPILE_COMMON_HEADERS "Precompile some common headers to speedup compilation" ON)
 
 add_custom_target(run
     COMMAND ${CMAKE_SOURCE_DIR}/Meta/run.sh
diff --git a/Kernel/CMakeLists.txt b/Kernel/CMakeLists.txt
index 8b376c97490..3b9e4311ef3 100644
--- a/Kernel/CMakeLists.txt
+++ b/Kernel/CMakeLists.txt
@@ -361,6 +361,7 @@ add_executable(Kernel ${SOURCES})
 target_link_libraries(Kernel kernel_heap gcc stdc++)
 add_dependencies(Kernel boot kernel_heap)
 install(TARGETS Kernel RUNTIME DESTINATION boot)
+serenity_add_ak_precompiled_headers_to_target(Kernel)
 
 add_custom_command(
     TARGET Kernel
diff --git a/Meta/CMake/precompile-headers.cmake b/Meta/CMake/precompile-headers.cmake
new file mode 100644
index 00000000000..10064715d68
--- /dev/null
+++ b/Meta/CMake/precompile-headers.cmake
@@ -0,0 +1,9 @@
+function(serenity_add_precompiled_header_to_target target header)
+    if (PRECOMPILE_COMMON_HEADERS AND COMMAND target_precompile_headers)
+        target_precompile_headers(${target} PRIVATE ${header})
+    endif ()
+endfunction()
+
+function(serenity_add_ak_precompiled_headers_to_target target)
+    serenity_add_precompiled_header_to_target(${target} ${CMAKE_SOURCE_DIR}/Meta/Precompile/AK.h)
+endfunction()
diff --git a/Meta/CMake/utils.cmake b/Meta/CMake/utils.cmake
index c659abd9005..e3aa4e136e2 100644
--- a/Meta/CMake/utils.cmake
+++ b/Meta/CMake/utils.cmake
@@ -1,3 +1,5 @@
+include(${CMAKE_SOURCE_DIR}/Meta/CMake/precompile-headers.cmake)
+
 function(serenity_install_headers target_name)
     file(GLOB_RECURSE headers RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*.h")
     foreach(header ${headers})
@@ -31,6 +33,7 @@ function(serenity_lib target_name fs_name)
     add_library(${target_name} SHARED ${SOURCES} ${GENERATED_SOURCES})
     install(TARGETS ${target_name} DESTINATION usr/lib)
     set_target_properties(${target_name} PROPERTIES OUTPUT_NAME ${fs_name})
+    serenity_add_ak_precompiled_headers_to_target(${target_name})
     serenity_generated_sources(${target_name})
 endfunction()
 
@@ -67,6 +70,7 @@ endfunction()
 function(serenity_bin target_name)
     add_executable(${target_name} ${SOURCES})
     install(TARGETS ${target_name} RUNTIME DESTINATION bin)
+    serenity_add_ak_precompiled_headers_to_target(${target_name})
     serenity_generated_sources(${target_name})
 endfunction()
 
diff --git a/Meta/Precompile/AK.h b/Meta/Precompile/AK.h
new file mode 100644
index 00000000000..000af2360d1
--- /dev/null
+++ b/Meta/Precompile/AK.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2021, Ali Mohammad Pur <ali.mpfard@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/Assertions.h>
+#include <AK/Badge.h>
+#include <AK/ByteBuffer.h>
+#include <AK/Format.h>
+#include <AK/Forward.h>
+#include <AK/Function.h>
+#include <AK/HashMap.h>
+#include <AK/JsonObject.h>
+#include <AK/LexicalPath.h>
+#include <AK/Optional.h>
+#include <AK/OwnPtr.h>
+#include <AK/RefCounted.h>
+#include <AK/RefPtr.h>
+#include <AK/StdLibExtras.h>
+#include <AK/String.h>
+#include <AK/StringBuilder.h>
+#include <AK/StringView.h>
+#include <AK/Types.h>
+#include <AK/URL.h>
+#include <AK/Vector.h>