Thomas Brennan

Thomas Brennan may refer to:

• Thomas Brennan (Irish Land League) (1853–1912), Irish politician
• Thomas Brennan (Fianna Fáil) (died 1953), Irish politician
• Thomas Brennan (Victorian state politician) (1900–1966), Victorian state MP
• Thomas Brennan (equestrian) (1940–2014), Irish equestrian
• Thomas E. Brennan (born 1929), American jurist, former Chief Justice of the Michigan Supreme Court
• Thomas Francis Brennan (1855–1916), American Catholic bishop; 1st Catholic bishop of Dallas 1891–1893
• Tom Brennan (politician) (1866–1944), Australian Senator
• Tom Brennan (basketball, born 1949), American sportscaster and former University of Vermont basketball coach
• Tom Brennan (basketball, born 1930) (1930–1990), basketball player for Villanova University and the Philadelphia Warriors
• Tom Brennan (baseball) (born 1952), 1980s baseball player
• Tom Brennan (ice hockey) (1922–2003), American ice hockey player for Boston Bruins
• Thom Brennan (born 1957), musician