diff --git a/AK/StdLibExtras.h b/AK/StdLibExtras.h
index ac074bf72a7..30a23b65bd4 100644
--- a/AK/StdLibExtras.h
+++ b/AK/StdLibExtras.h
@@ -125,6 +125,26 @@ constexpr bool is_constant_evaluated()
 #endif
 }
 
+// These can't be exported into the global namespace as they would clash with the C standard library.
+
+#define __DEFINE_GENERIC_ABS(type, zero, intrinsic) \
+    constexpr type abs(type num)                    \
+    {                                               \
+        if (is_constant_evaluated())                \
+            return num < zero ? -num : num;         \
+        else                                        \
+            return __builtin_##intrinsic(num);      \
+    }
+
+__DEFINE_GENERIC_ABS(int, 0, abs);
+__DEFINE_GENERIC_ABS(long, 0l, labs);
+__DEFINE_GENERIC_ABS(long long, 0ll, llabs);
+#ifndef KERNEL
+__DEFINE_GENERIC_ABS(float, 0.0f, fabsf);
+__DEFINE_GENERIC_ABS(double, 0.0, fabs);
+__DEFINE_GENERIC_ABS(long double, 0.0l, fabsl);
+#endif
+
 }
 
 using AK::array_size;
diff --git a/Userland/Demos/Eyes/EyesWidget.cpp b/Userland/Demos/Eyes/EyesWidget.cpp
index 2fe07ba04de..87eb099787c 100644
--- a/Userland/Demos/Eyes/EyesWidget.cpp
+++ b/Userland/Demos/Eyes/EyesWidget.cpp
@@ -5,6 +5,7 @@
  */
 
 #include "EyesWidget.h"
+#include <AK/StdLibExtraDetails.h>
 #include <LibGUI/Painter.h>
 #include <LibGUI/Window.h>
 #include <LibGUI/WindowServerConnection.h>
@@ -89,14 +90,14 @@ Gfx::IntPoint EyesWidget::pupil_center(Gfx::IntRect& eyeball_bounds) const
     double max_distance_along_this_direction;
 
     // clang-format off
-    if (dx != 0 && abs(dx) >= abs(dy)) {
+    if (dx != 0 && AK::abs(dx) >= AK::abs(dy)) {
         double slope = dy / dx;
         double slope_squared = slope * slope;
         max_distance_along_this_direction = 0.25 * sqrt(
             (slope_squared + 1) /
             (1 / width_squared + slope_squared / height_squared)
         );
-    } else if (dy != 0 && abs(dy) >= abs(dx)) {
+    } else if (dy != 0 && AK::abs(dy) >= AK::abs(dx)) {
         double slope = dx / dy;
         double slope_squared = slope * slope;
         max_distance_along_this_direction = 0.25 * sqrt(
diff --git a/Userland/Libraries/LibGfx/Point.h b/Userland/Libraries/LibGfx/Point.h
index c5a3c54be40..1d1f8f2df91 100644
--- a/Userland/Libraries/LibGfx/Point.h
+++ b/Userland/Libraries/LibGfx/Point.h
@@ -13,7 +13,6 @@
 #include <LibGfx/Orientation.h>
 #include <LibIPC/Forward.h>
 #include <math.h>
-#include <stdlib.h>
 
 namespace Gfx {
 
@@ -217,7 +216,7 @@ public:
     // Returns pixels moved from other in either direction
     [[nodiscard]] T pixels_moved(Point<T> const& other) const
     {
-        return max(abs(dx_relative_to(other)), abs(dy_relative_to(other)));
+        return max(AK::abs(dx_relative_to(other)), AK::abs(dy_relative_to(other)));
     }
 
     [[nodiscard]] float distance_from(Point<T> const& other) const
@@ -229,7 +228,7 @@ public:
 
     [[nodiscard]] Point absolute_relative_distance_to(Point const& other) const
     {
-        return { abs(dx_relative_to(other)), abs(dy_relative_to(other)) };
+        return { AK::abs(dx_relative_to(other)), AK::abs(dy_relative_to(other)) };
     }
 
     template<typename U>
diff --git a/Userland/Libraries/LibJS/Runtime/Value.cpp b/Userland/Libraries/LibJS/Runtime/Value.cpp
index c60a7f8157c..5666b28e713 100644
--- a/Userland/Libraries/LibJS/Runtime/Value.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Value.cpp
@@ -179,7 +179,7 @@ static String double_to_string(double d)
         else
             builder.append('-');
 
-        builder.append(String::number(fabs(exponent - 1)));
+        builder.append(String::number(AK::abs(exponent - 1)));
         return builder.to_string();
     }
 
@@ -193,7 +193,7 @@ static String double_to_string(double d)
     else
         builder.append('-');
 
-    builder.append(String::number(fabs(exponent - 1)));
+    builder.append(String::number(AK::abs(exponent - 1)));
     return builder.to_string();
 }
 
diff --git a/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp
index 9887bbf4692..1c9cb5d431b 100644
--- a/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp
@@ -482,7 +482,7 @@ void FlexFormattingContext::run(Box& box, LayoutMode)
 
             if (sum_of_unfrozen_flex_items_flex_factors < 1) {
                 auto intermediate_free_space = initial_free_space * sum_of_unfrozen_flex_items_flex_factors;
-                if (abs(intermediate_free_space) < abs(remaining_free_space))
+                if (AK::abs(intermediate_free_space) < AK::abs(remaining_free_space))
                     remaining_free_space = intermediate_free_space;
             }
 
@@ -503,7 +503,7 @@ void FlexFormattingContext::run(Box& box, LayoutMode)
 
                     for_each_unfrozen_item([&](FlexItem* flex_item) {
                         float ratio = flex_item->scaled_flex_shrink_factor / sum_of_scaled_flex_shrink_factor_of_unfrozen_items;
-                        flex_item->target_main_size = flex_item->flex_base_size - (abs(remaining_free_space) * ratio);
+                        flex_item->target_main_size = flex_item->flex_base_size - (AK::abs(remaining_free_space) * ratio);
                     });
                 }
             } else {