Grumman could mean: Companies Grumman, a former aircraft maker, now part of Northrop Grumman Northrop Grumman, an aerospace and defense conglomerate People Leroy Grumman (1895–1982), an American industrialist and aeronautical engineer, who founder of the Grumman Aircraft Engineering Corporation Ships USNS Leroy Grumman (T-AO-195), a U.S. Navy fleet replenishment oiler in service since 1989 Fiction Grumman (Dune), a fictional planet in Frank Herbert's Dune universe Stanislaus Grumman, a fictional character in the His Dark Materials series