diff --git a/Userland/Libraries/LibIPC/Message.h b/Userland/Libraries/LibIPC/Message.h
index 7a8c5e4e56..86bf53c697 100644
--- a/Userland/Libraries/LibIPC/Message.h
+++ b/Userland/Libraries/LibIPC/Message.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/Function.h>
 #include <AK/RefCounted.h>
 #include <AK/RefPtr.h>
 #include <AK/Vector.h>
diff --git a/Userland/Libraries/LibRegex/RegexMatcher.cpp b/Userland/Libraries/LibRegex/RegexMatcher.cpp
index e30d285716..c980dd726c 100644
--- a/Userland/Libraries/LibRegex/RegexMatcher.cpp
+++ b/Userland/Libraries/LibRegex/RegexMatcher.cpp
@@ -4,13 +4,14 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include "RegexMatcher.h"
-#include "RegexDebug.h"
-#include "RegexParser.h"
 #include <AK/Debug.h>
-#include <AK/ScopedValueRollback.h>
 #include <AK/String.h>
 #include <AK/StringBuilder.h>
+#if REGEX_DEBUG
+#    include <LibRegex/RegexDebug.h>
+#endif
+#include <LibRegex/RegexMatcher.h>
+#include <LibRegex/RegexParser.h>
 
 namespace regex {
 
diff --git a/Userland/Libraries/LibTLS/Socket.cpp b/Userland/Libraries/LibTLS/Socket.cpp
index 2bbb789b69..2df6980a4d 100644
--- a/Userland/Libraries/LibTLS/Socket.cpp
+++ b/Userland/Libraries/LibTLS/Socket.cpp
@@ -7,7 +7,6 @@
 #include <AK/Debug.h>
 #include <LibCore/DateTime.h>
 #include <LibCore/Timer.h>
-#include <LibCrypto/ASN1/DER.h>
 #include <LibCrypto/PK/Code/EMSA_PSS.h>
 #include <LibTLS/TLSv12.h>
 
diff --git a/Userland/Libraries/LibTLS/TLSv12.cpp b/Userland/Libraries/LibTLS/TLSv12.cpp
index 3993ce26ad..eb28a890d4 100644
--- a/Userland/Libraries/LibTLS/TLSv12.cpp
+++ b/Userland/Libraries/LibTLS/TLSv12.cpp
@@ -9,7 +9,6 @@
 #include <LibCore/ConfigFile.h>
 #include <LibCore/DateTime.h>
 #include <LibCore/File.h>
-#include <LibCore/FileStream.h>
 #include <LibCore/Timer.h>
 #include <LibCrypto/ASN1/ASN1.h>
 #include <LibCrypto/ASN1/PEM.h>
diff --git a/Userland/Libraries/LibVT/Terminal.cpp b/Userland/Libraries/LibVT/Terminal.cpp
index 98c80e4c79..9e942873e2 100644
--- a/Userland/Libraries/LibVT/Terminal.cpp
+++ b/Userland/Libraries/LibVT/Terminal.cpp
@@ -5,7 +5,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include "Terminal.h"
 #include <AK/Debug.h>
 #include <AK/Queue.h>
 #include <AK/StringBuilder.h>
diff --git a/Userland/Libraries/LibX86/Instruction.cpp b/Userland/Libraries/LibX86/Instruction.cpp
index 57328b6e27..7d8b065af6 100644
--- a/Userland/Libraries/LibX86/Instruction.cpp
+++ b/Userland/Libraries/LibX86/Instruction.cpp
@@ -7,7 +7,6 @@
 #include <AK/StringBuilder.h>
 #include <LibX86/Instruction.h>
 #include <LibX86/Interpreter.h>
-#include <stdio.h>
 
 #if defined(__GNUC__) && !defined(__clang__)
 #    pragma GCC optimize("O3")