diff --git a/AK/IPv6Address.h b/AK/IPv6Address.h
index dd64d9f58a8..fc5c708c7f4 100644
--- a/AK/IPv6Address.h
+++ b/AK/IPv6Address.h
@@ -111,6 +111,18 @@ public:
         if (string.is_null())
             return {};
 
+        // NOTE: This supports URI syntax (square brackets) for IPv6 addresses.
+        //       See: https://datatracker.ietf.org/doc/html/rfc3986#section-3.2.2
+        auto const starts_with_bracket = string.starts_with('[');
+        auto const ends_with_bracket = string.ends_with(']');
+
+        if (starts_with_bracket || ends_with_bracket) {
+            if (!starts_with_bracket || !ends_with_bracket)
+                return {};
+
+            string = string.substring_view(1, string.length() - 2);
+        }
+
         auto const parts = string.split_view(':', SplitBehavior::KeepEmpty);
         if (parts.is_empty())
             return {};
diff --git a/Tests/AK/TestIPv6Address.cpp b/Tests/AK/TestIPv6Address.cpp
index 41073241647..7d94d8b8e3a 100644
--- a/Tests/AK/TestIPv6Address.cpp
+++ b/Tests/AK/TestIPv6Address.cpp
@@ -82,6 +82,17 @@ TEST_CASE(should_make_ipv6_address_from_string)
     EXPECT_EQ(IPv6Address::from_string("102:0:506:708:900::"sv).value(), IPv6Address({ 1, 2, 0, 0, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, 0 }));
     EXPECT_EQ(IPv6Address::from_string("::304:506:708:90a:b0c:d0e:f10"sv).value(), IPv6Address({ 0, 0, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 }));
     EXPECT_EQ(IPv6Address::from_string("102:304::708:90a:b0c:d0e:f10"sv).value(), IPv6Address({ 1, 2, 3, 4, 0, 0, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 }));
+    EXPECT_EQ(IPv6Address::from_string("[102:304::708:90a:b0c:d0e:f10]"sv).value(), IPv6Address({ 1, 2, 3, 4, 0, 0, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 }));
+    EXPECT_EQ(IPv6Address::from_string("[::304:506:708:90a:b0c:d0e:f10]"sv).value(), IPv6Address({ 0, 0, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 }));
+}
+
+TEST_CASE(should_not_make_ipv6_address_from_string)
+{
+    EXPECT_EQ(IPv6Address::from_string("[102:0:506:708:900::10"sv), OptionalNone {});
+    EXPECT_EQ(IPv6Address::from_string("102:0:506:708:900::10]"sv), OptionalNone {});
+    EXPECT_EQ(IPv6Address::from_string("[::304:506:708:90a:b0c:d0e:f10]]"sv), OptionalNone {});
+    EXPECT_EQ(IPv6Address::from_string("[[::304:506:708:90a:b0c:d0e:f10]"sv), OptionalNone {});
+    EXPECT_EQ(IPv6Address::from_string("[[::304:506:708:90a:b0c:d0e:f10]]"sv), OptionalNone {});
 }
 
 TEST_CASE(ipv4_mapped_ipv6)