Thomas Edward Gullickson (born August 14, 1950) is an American prelate of the Roman Catholic Church.

He studied canon law at the Pontifical Gregorian University in Rome, writing his doctoral dissertation in 1985 on The Diocesan Bishop: Moderator and Sponsor of the Ministry of the Word.

[4] Gullickson received his episcopal consecration on November 11, 2004, from Cardinal Giovanni Lajolo, with Bishops Robert Carlson and Paul Dudley as co-consecrators.

[5] On December 15, 2004, Gullickson was given additional appointments as apostolic nuncio to other Caribbean nations: Antigua and Barbuda, Barbados, Jamaica, Guyana, and Suriname.

[15] Gullickson has frequently expressed his preference for the extraordinary form of the mass in which the priest faces the altar in the same direction as the congregation.