M38

M38 or M-38 may refer to:

• Willys M38, a light tactical vehicle, successor of the Willys MB
• Beretta Model 38, an Italian submachine gun
• M38 Wolfhound, a prototype American armoured car designed in 1944
• M-38 (Michigan highway), a state highway in Michigan
• M38 (Cape Town), a Metropolitan Route in Cape Town, South Africa
• M38 (Johannesburg), a Metropolitan Route in Johannesburg, South Africa
• M38 highway (Kazakhstan), a road connecting the border to Russia near Omsk and Georgiyevka
• Miles M.38 Messenger, a 1942 British four-seat liaison aircraft
• Messier 38, an open star cluster in the constellation Auriga
• Model 1938 Carbine, a version of the Mosin-Nagant rifle
• HMS Atherstone (M38) a British minesweeper
• MAS-38, a French WWII submachine gun
• M38 DMR, a designated marksman rifle used by the United States Marine Corps since 2017