Places in Australia named Underwood include:

Places in the United Kingdom named Underwood include:

Carrie Underwood (1983–), US singer and winner of the American Idol TV series in 2005

William Underwood Company, a 19th- and 20th-century maker of condiments and packaged meat and fish

Underwood tariff, a US tax law

Blair Underwood (1964–), US actor

Katie Underwood (1975–), Australian singer-songwriter

Ron Underwood (1953–), US film director

Peter Underwood (parapsychologist)

Underwood, North Dakota

Underwood, Iowa

Cecil H. Underwood (1922–), US politician

Dimitrius Underwood

Underwood, Newport, village in Wales

Sara Jean Underwood (1984–), Playboy Playmate

Joseph R. Underwood

Tony Underwood (1969–), English rugby union player

Cecilia Underwood, Duchess of Inverness

Ruth Underwood

Oscar Underwood (1862–1929), US congressional leader

New Underwood, South Dakota

Underwood Township, Minnesota

James Underwood, British pathologist

Underwood-Petersville, Alabama

Marviel Underwood, pro football defensive back

USS Underwood (FFG-36), US Navy ship

Derek Underwood, English cricketer

Rory Underwood (1963–), English rugby union player

Thomas Underwood

Underwood Dudley (1937–), US mathematician

Ron Underwood (musician)

Underwood, Minnesota

Thomas R. Underwood (1898-1956)

Sheryl Underwood

Kevin Ray Underwood

Gilbert Stanley Underwood

William D. Underwood

Peter Underwood (judge)

Robert A. Underwood (1948–), US politician from Guam

Wotton Underwood, village in England

Michael Underwood, British presenter

Weston Underwood, Derbyshire, village in England

Fred Underwood (1868–1906), Major League Baseball pitcher

Ian Underwood

Loyal Underwood

Mell G. Underwood

Jay Underwood

Underwood, Nottinghamshire, village in England

Sharon Underwood, mother of a gay son who gained fame in April 2000 when she wrote an open letter disposing homophobic myths that was widely reprinted

Tom Underwood (born 1953), Major League Baseball pitcher

George Allen Underwood (1793–1829), English architect

Kianna Underwood (1992—), child actress

Olen Underwood, NFL football player and Texas state judge

Frank Underwood, English musician

Pat Underwood

Matthew Underwood

Francis Henry Underwood

Weston Underwood, Milton Keynes, village in England

Leon Underwood (1890–1975), British artist

Underwood, Queensland, a suburb of Logan City, Australia

Jim Underwood

Grendon Underwood, village in England

Underwood Typewriter Company, a typewriter manufacturer

Underwood & Underwood, an early producer and distributor of Stereoscopic

Robin Underwood, former head of the Country Roads Board in Australia and regarded as the chief author of the controversial 1980 Lonie Report