Thomas Brennan
Thomas or Tom Brennan may refer to:
- Thomas Brennan , Irish politician
- Thomas Brennan , Irish politician
- Thomas Brennan , Victorian state MP
- Thomas Brennan , Scottish professional footballer
- Thomas Brennan , Irish equestrian
- Thomas E. Brennan, American jurist, Chief Justice of the Michigan Supreme Court
- Thomas Francis Brennan, American Catholic bishop; 1st Catholic bishop of Dallas 1891–1893
- Tom Brennan , Australian Senator
- Tom Brennan , basketball player for Villanova University and the Philadelphia Warriors
- Tom Brennan , American sportscaster and former University of Vermont basketball coach
- Tom Brennan , 1980s baseball player
- Tom Brennan , Oklahoma civil servant and businessman
- Tom Brennan, English soccer player
- Tom Brennan , American ice hockey player for Boston Bruins
- Tom Brennan , British speedway rider
- Thom Brennan, American musician
- Tommy Brennan , Scottish political activist
- Tommy Brennan, American comedian and cast member on Saturday Night Live season 51