Here is a list of all namespace typedefs with links to the namespace documentation for each typedef:

Bvec2 : sf::Glsl
Bvec3 : sf::Glsl
Bvec4 : sf::Glsl
ContextDestroyCallback : sf
FloatRect : sf
GlFunctionPointer : sf
IntRect : sf
Ivec2 : sf::Glsl
Ivec3 : sf::Glsl
Ivec4 : sf::Glsl
Mat3 : sf::Glsl
Mat4 : sf::Glsl
Scancode : sf::Keyboard
SocketHandle : sf
U8String : sf
Utf16 : sf
Utf32 : sf
Utf8 : sf
Vec2 : sf::Glsl
Vec3 : sf::Glsl
Vec4 : sf::Glsl
Vector2f : sf
Vector2i : sf
Vector2u : sf
Vector3f : sf
Vector3i : sf
VulkanFunctionPointer : sf
WindowHandle : sf