diff --git a/lib/std/math/math.c3 b/lib/std/math/math.c3
index 7771e3494..2afa0650c 100644
--- a/lib/std/math/math.c3
+++ b/lib/std/math/math.c3
@@ -845,6 +845,46 @@ macro int128 int128.sat_sub(int128 x, int128 y) => $$sat_sub(x, y);
 macro int128 int128.sat_mul(int128 x, int128 y) => $$sat_mul(x, y);
 macro int128 int128.sat_shl(int128 x, int128 y) => $$sat_shl(x, y);
 
+/**
+ * @require values::@is_int(x) `The input must be an integer`
+ **/
+macro bool is_odd(x) => (bool)(x & 1);
+
+/**
+ * @require values::@is_int(x) `The input must be an integer`
+ **/
+macro bool is_even(x) => !is_odd(x);
+
+macro bool char.is_even(char x) => is_even(x);
+macro bool char.is_odd(char x) => is_odd(x);
+
+macro bool ichar.is_even(ichar x) => is_even(x);
+macro bool ichar.is_odd(ichar x) => is_odd(x);
+
+macro bool ushort.is_even(ushort x) => is_even(x);
+macro bool ushort.is_odd(ushort x) => is_odd(x);
+
+macro bool short.is_even(short x) => is_even(x);
+macro bool short.is_odd(short x) => is_odd(x);
+
+macro bool uint.is_even(uint x) => is_even(x);
+macro bool uint.is_odd(uint x) => is_odd(x);
+
+macro bool int.is_even(int x) => is_even(x);
+macro bool int.is_odd(int x) => is_odd(x);
+
+macro bool ulong.is_even(ulong x) => is_even(x);
+macro bool ulong.is_odd(ulong x) => is_odd(x);
+
+macro bool long.is_even(long x) => is_even(x);
+macro bool long.is_odd(long x) => is_odd(x);
+
+macro bool uint128.is_even(uint128 x) => is_even(x);
+macro bool uint128.is_odd(uint128 x) => is_odd(x);
+
+macro bool int128.is_even(int128 x) => is_even(x);
+macro bool int128.is_odd(int128 x) => is_odd(x);
+
 /**
  * @checked x & 1
  */
diff --git a/test/unit/stdlib/math/math_is_even_odd.c3 b/test/unit/stdlib/math/math_is_even_odd.c3
new file mode 100644
index 000000000..8c4977942
--- /dev/null
+++ b/test/unit/stdlib/math/math_is_even_odd.c3
@@ -0,0 +1,23 @@
+module math_is_even_odd_tests;
+import std::math;
+import std::io;
+
+macro test(start, ...)
+{
+    $for (var $i = 0; $i < $vacount; $i++)
+        for ($vatype($i) i = ($vatype($i))start; i < 5; i+=2)
+        {
+	    assert(math::is_even(i));
+	    assert(i.is_even());
+
+	    assert(!math::is_odd(i));
+	    assert(!i.is_odd());
+        }
+    $endfor;
+}
+
+fn void! tests() @test
+{
+    test(0, char, ushort, uint, ulong, uptr, usz, uint128);
+    test(-4, ichar, short, int, long, iptr, isz, int128);
+}