G41, G-41 or G.41 may refer to:
Gewehr 41, a German rifle used in World War II
Heckler & Koch G41, a German assault rifle
HMS Panther (G41), a United Kingdom Royal Navy destroyer which saw service during World War II
SMS G41, an Imperial German Navy torpedo boat
Victorian Railways G class locomotive number
IBM ThinkPad G41, a model of the G-series Thinkpads, which were used as desktop replacements.
Intel G41 microchips set for desktop computers.