Onslow may refer to:
Places Onslow, Western Australia, Australia, a town Onslow, Nova Scotia, Canada, an unincorporated community Onslow Speedway Borough of Onslow, New Zealand Onslow (New Zealand electorate), a New Zealand parliamentary electorate Lake Onslow, New Zealand, a man-made lake Onslow Village, an area of Guildford, Surrey, UK Onslow, Iowa, U.S. Onslow County, North Carolina, U.S. Onslow Bay, North Carolina, U.S.
Ships HMS Onslow (1916), an Admiralty M-class destroyer HMS Onslow (G17), an O-class destroyer launched in March 1941 HMS Pakeham, a destroyer launched in January 1941 that exchanged named with the O-class destroyer before commissioning HMAS Onslow, a submarine of the Royal Australian Navy USS Onslow (AVP-48), a United States Navy seaplane tender
Titles Earl of Onslow, an extant title in the Peerage of the United Kingdom Onslow baronets, two titles, both extant
People Onslow (surname) Onslow (given name)
Other uses Onslow (Keeping Up Appearances), a character on Keeping Up Appearances Onslow College, a secondary school in Wellington, New Zealand Onslow AFC, a defunct association football club from Wellington, New Zealand