Thomas, Tom, or Tommy Griffiths may refer to:
Arts, science, and academia Thomas Vernon Griffiths (1894–1985), New Zealand music teacher and lecturer, composer Tom Griffiths (cognitive scientist), professor who heads Princeton's Computational Cognitive Science lab Tom Griffiths (historian), Australian historian and author
Religion Thomas Griffiths (bishop) (1791–1847), English Roman Catholic bishop Thomas Griffiths (priest) (born 1897), Welsh Anglican priest
Sport Thomas Griffiths (footballer, born 1906) (1906–1981), Welsh footballer Tom Griffiths (footballer, born 1888) (1888–?), English footballer Tom Griffiths (rugby union) (born 1995), English rugby union player Tommy Griffiths (footballer, born 1901) (1901–1950), English footballer Tom Griffiths (bowls), Welsh bowls player
Others T. Ras Makonnen (died 1983), Guyanese-born activist, born Thomas Griffiths Thomas Griffiths (general) (1865–1947), Australian Army colonel and temporary Brigadier General in World War I Thomas Griffiths (politician) (1867–1955), Welsh Labour Member of Parliament for Pontypool Tommy Griffiths (radio personality), former host of Rumble in the Morning radio program
See also Thomas Griffith (disambiguation) Thomas Griffiths Wainewright (1794–1847), English journalist and subject-painter