Thomas McDermott may refer to:
*
Thomas MacDermot (1870–1933), Jamaican writer
*
Tommy McDermott (1878–1961), Scottish footballer
*
Tom McDermott (musician)
Tom McDermott is a pianist and composer born in St. Louis, Missouri in 1957. He began studying piano at age seven, became a professional musician at 16, and received a Master of Music degree from Washington University in St. Louis in 1982. Two ye ...
(born 1957), American jazz pianist
*
Thomas McDermott Jr. (born 1969), mayor of Hammond, Indiana
*
Tom McDermott (Big Brother), contestant on the first series of ''Big Brother'' in the UK
*
Tom McDermott (engineer), American academic
*
Tommy McDermott (footballer, born 2005) (born 2005), English footballer
{{human name disambiguation, Mcdermott, Thomas