Thomas Nicolson
Thomas Nicolson or Nicholson may refer to:
- Thomas Nicolson of Carnock, commissioner for Stirlingshire
- Sir Thomas Nicolson, [6th Baronet], of the Nicolson baronets
- Thomas Nicolson (bishop), Roman Catholic bishop
- Thomas Nicolson, 4th [Lord Napier], Scottish peer
- Sir Thomas Nicolson, [1st Baronet], of the Nicolson baronets
- Thomas Nicholson (architect), British architect
- Thomas Nicholson (rugby union), English international rugby union player
- Thomas Nicholson (cricketer), English cricketer
- Tom Nicolson, British track and field athlete
- Thomas Nicholson (educator), American health educator and drug policy specialist