It is technically challenging to diagnose injuries to the radioulnar ligaments (RUL) of the wrist on magnetic resonance imaging (MRI). We identified and classified the morphology of the dorsal and volar radioulnar ligaments (RUL) of the wrist into five types using 3T MRI. Two hundred and nine participants were retrospectively evaluated using 3T axial 2D and reformatted axial isotropic 3D images. Both dorsal and volar RULs attach to the radial to dorsal side of the ulnar styloid. The RUL was equally identified on high-resolution two-dimensional and on isotropic three-dimensional MRI.