Wilhelm "Willi" Bertuleit (Lithuanian: Vilius Bertulaitis; May 29, 1900 – KIA July 22, 1941) was a Prussian Lithuanian active in the Klaipeda Region (Memelland).
He supported Nazi Germany and its attempts to retake the region from Lithuania.
He was a member of the NSDAP and SA.
He was killed in action serving in the Wehrmacht in the Eastern Front.