Kelso is both a surname and a given name. Notable people with the name include:
Surname:
Ben Kelso (born 1949), American basketball player and coach
Beverley Kelso, Jamaican singer
Bill Kelso (1940-2009), Major League Baseball pitcher
Bob Kelso (footballer) (1865-1942), Scottish soccer player
Frank B. Kelso II (born 1933), United States Navy admiral
Iris Kelso (1926-2003), American journalist and television commentator
J. A. Scott Kelso (born 1947), neuroscientist
J. J. Kelso (1864-1935), creator of the Children's Aid Society in Canada
Jack W. Kelso (1934-1952), Medal of Honor recipient
Jackie Kelso (1922-2012), American jazz saxophonist, flautist, and clarinetist
Jamie Kelso (born 1948), political activist
Jim Kelso (1910-1987), Scottish soccer player
Jimmy Kelso (1910-?), Australian boxer of the 1920s and '30s
John R. Kelso (1831-1891), politician and author
Iain Kelso (born 1975), Canadian film score composer
Lee Kelso, television news anchor
Louis O. Kelso (1913-1991), political economist
Mark Kelso (born 1963), former Buffalo Bills defensive back
Mayme Kelso (1867-1946), American actress
Megan Kelso (born 1968), comic book artist
Phil Kelso (1871-1935), Scottish soccer player
Sylvia Kelso, Australian author
Thomas Kelso (1784-1878), philanthropist
William Kelso (born 1941), archeologist
Given name:
Kelso Roberts, Canadian politician
Kelso Cochrane (~1936-1959), Antiguan immigrant to Britain whose murder sparked tensions in London
Fictional people:
Bob Kelso, Chief of Medicine from Scrubs
Michael Kelso, character on That '70s Show
Casey Kelso, That '70s Show character
Wyoming Bill Kelso, character in The Party
Jack Kelso, character in L.A. Noire
Capt. Wild Bill Kelso in 1941