Grumman could mean:

Companies

• Grumman, a former aircraft maker, now part of Northrop Grumman
• Northrop Grumman, an aerospace and defense conglomerate

People

• Cornelia Grumman (fl. 1981–present), American journalist
• 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