M38

M38 or M-38 may refer to:


 * Willys M38, a light tactical vehicle, successor of the Willys MB
 * 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