Newmarket may refer to:

Communities

Australia

• Newmarket, Queensland

Canada

• Newmarket, Ontario

Ireland

• Newmarket, County Cork
• Newmarket-on-Fergus, in County Clare
  • Newmarket-on-Fergus (Roman Catholic parish), in the Roman Catholic Diocese of Killaloe

New Zealand

• Newmarket, New Zealand, an Auckland suburb

United Kingdom

• Newmarket, Flintshire, former name of the Welsh village of Trelawnyd between 1710 and 1954
• Newmarket, Gloucestershire, a hamlet in England
• Newmarket, Lewis, a village in the Outer Hebrides, Scotland
• Newmarket, Suffolk, an English market town known as the global centre of Thoroughbred horse racing

United States

• Newmarket, Marion County, Missouri, an unincorporated community
• Newmarket, New Hampshire, a town in Rockingham County
  • Newmarket (CDP), New Hampshire, the main village in the town

Companies

• Newmarket Capital Group, an American film financing company based in Los Angeles
• NewMarket Corporation, an American chemical company based in Richmond, Virginia
• The Newmarket Era, a Canadian newspaper in Ontario
• Newmarket Films, a defunct American film production and distribution company
• Newmarket Holidays, a British tour operator based in Greater London
• Newmarket North Mall, a defunct America shopping mall in Hampton, Virginia
• Newmarket Press, a defunct American publisher based in New York City

Electoral districts

• Newmarket (UK Parliament constituency), a Parliamentary constituency, 1885–1918
• Newmarket—Aurora, a federal electoral district in Ontario, Canada
  • Newmarket—Aurora (provincial electoral district), a provincial electoral district there
• Newmarket Rural District, in Cambridgeshire, England, 1894–1974

Geographic features

• Newmarket Heath, in Suffolk, England
• Newmarket Hill, Sussex, in England
• Newmarket Park, in Auckland, New Zealand
• Newmarket Ridge, in Suffolk, England

Historic locations

• Big Stable Newmarket, a heritage-listed stable in Sydney, Australia
• Newmarket Air Raid Shelter, a heritage-listed air raid shelter in Brisbane, Queensland, Australia
• Newmarket Brickworks Chimney, a heritage-listed brickworks in Brisbane, Queensland, Australia
• Newmarket Hotel, a heritage-listed former hotel in Hamilton Hill, Western Australia
• Newmarket Industrial and Commercial Historic District, in Rockingham County, New Hampshire, U.S.
• Newmarket Workshops, former railway workshops in Auckland, New Zealand

Schools

Australia

• Newmarket State School, in Brisbane, Queensland
• Newmarket State High School, in Brisbane, Queensland

Canada

• Newmarket High School, a secondary school in Ontario

United Kingdom

• Newmarket Academy, in Suffolk, England

United States

• Newmarket Junior-Senior High School, in Rockingham County, New Hampshire

Sports

Australia

• Newmarket Handicap, an annual horse race in Australia
• Newmarket SFC, a football team in Brisbane, Queensland

Canada

• Newmarket Hurricanes, a defunct Tier II Junior "A" ice hockey team
• Newmarket Royals, a defunct junior ice hockey team
• Newmarket Saints, a defunct minor league hockey team
• Newmarket Saints (OLA), a box lacrosse team

Ireland

• Newmarket GAA, a Gaelic football and hurling club in County Cork
• Newmarket-on-Fergus GAA, a Gaelic football and hurling club in County Clare

United Kingdom

• Newmarket Racecourse, in Suffolk, England
• Newmarket Road (football ground), former home ground for Norwich City
• Newmarket Town F.C., a football club in Suffolk, England
• Newmarket Town Plate, a British horse race run annually since 1665
• Newmarket Stadium, a proposed stadium in West Yorkshire, England
• Newmarket Stakes, an annual horse race in England

Transportation

Australia

• Newmarket railway station, Brisbane
• Newmarket railway station, Melbourne

Canada

• Newmarket Bus Terminal, in Ontario
• Newmarket Canal, an abandoned barge canal project in Ontario
• Newmarket GO Station, a station in the GO Transit network in Ontario
• Newmarket Transit, a defunct transit system now merged with York Region Transit

New Zealand

• Newmarket Line, a railway line in Auckland
• Newmarket Railway Station, New Zealand, a local train station in Auckland
• Newmarket Viaduct, a major motorway bridge in Auckland

United Kingdom

• Ely and Newmarket Railway, a defunct railway in England
• Newmarket and Chesterford Railway, a defunct railway in England
• Newmarket railway station (Suffolk), on the Ipswich–Ely line
• Newmarket Road, Cambridge, an arterial road in the east of Cambridge

United States

• Newmarket station (MBTA), a commuter rail station in Boston, Massachusetts

Other uses

• HMS Newmarket, several ships of the Royal Navy
• The Man of Newmarket, a 1678 English comedy play
• Newmarket (card game), an English card game
• Newmarket Citizens' Band, a Canadian concert band based in Ontario
• Newmarket Public Library (Newmarket, Ontario), in Canada
• Newmarket sausage, a traditional product from the English town of Newmarket, Suffolk