Thomas Griffiths
Thomas, Tom, or Tommy Griffiths may refer to:
Arts, science, and academia
- Thomas Vernon Griffiths, 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), English Roman Catholic bishop
- Thomas Griffiths (priest), Welsh Anglican priest
Sport
- Thomas Griffiths (footballer, born 1906), Welsh footballer
- Tom Griffiths (footballer, born 1888), English footballer
- Tom Griffiths (rugby union), English rugby union player
- Tommy Griffiths (footballer, born 1901), English footballer
- Tom Griffiths (bowls), Welsh bowls player
Others
- T. Ras Makonnen, Guyanese-born activist, born Thomas Griffiths
- Thomas Griffiths (general), Australian Army colonel and temporary Brigadier General in World War I
- Thomas Griffiths (politician), Welsh Labour Member of Parliament for Pontypool
- Tommy Griffiths (radio personality), former host of Rumble in the Morning radio program