Thomas McAllister may refer to:
Thomas Francis McAllister (1896–1976), United States federal judge Thomas Stanislaus McAllister (1878–1950), Northern Irish politician Tom McAllister (footballer) (1882–1951), Scottish footballer Tom McAllister, member of the Shotts and Dykehead Pipe Band in Scotland in the 1940s Tom McAllister, member of the Irish People's Liberation Organisation in the 1980s Red John, a fictional serial killer revealed to be Sheriff Thomas McAllister, from the TV series The Mentalist
See also Tom McAlister (born 1952), Scottish footballer