Thomasina

Thomasina, Thomasine, or Thomasena is the feminine form of the given name Thomas, which means "twin". Thomasina is often shortened to Tamsin. Tamsin can be used as a name in itself; variants of Tamsin include Tamsyn, Tamzin, Tamsen, Tammi and Tamasin. The version "Tamsin" is especially popular in Cornwall and Wales. Along with Tamara it is the ancestor of "Tammy".

Tammi

 * Tammi Patterson (born 1990), Australian tennis player
 * Tammi Terrell (1945–1970), American recording artist

Tammie

 * Tammie Jo Shults (born 1961), American commercial airline captain, author, and retired naval aviator

Tamsen

 * Tamsen Donner (1801–1847), third wife of George Donner of the Donner Party
 * Tamsen Fadal, American journalist, news anchor, author and host/executive producer
 * Tamsen McGarry (born 1982), Irish alpine skier
 * Emil Tamsen (1862–1957), South African philatelist

Tamsin

 * Tamsin Blanchard, British fashion journalist
 * Tamsin Carroll (born 1979), Australian actress
 * Tamsin Cook (born 1998), Australian swimmer
 * Tamsin Dunwoody (born 1958), sometimes known as Tamsin Dunwoody-Kneafsey, British politician
 * Tamsin Edwards, British climate scientist
 * Tamsin Egerton (born 1988), British actress
 * Tamsin Ford (born 1966), British psychiatrist specialising in children's mental health
 * Tamsin Greenway (born 1982), English netball player
 * Tamsin Greig (born 1966), British actress
 * Tamsin Heatley, British actress and voice artist
 * Tamsin Hinchley (born 1980), Australian volleyball player
 * Tamsin Mather (born 1976), British Professor of Earth Sciences
 * Tamsin Pickeral (born 1971), British author and art historian
 * Tamsin West (born 1974), Australian actress and singer

Tamsyn

 * Tamsyn Challenger, Cornish artist
 * Dame Tamsyn Imison (1937–2017), British educator
 * Tamsyn Leevey (born 1978) New Zealand squash player
 * Tamsyn Manou (born 1978), Australian athlete and middle-distance runner
 * Tamsyn Muir, New Zealand author of fantasy, science fiction and horror genres
 * Oona Tamsyn King, Baroness King of Bow (born 1967), British Labour politician

Tamzin

 * Tamzin Malleson (born 1974), British actress
 * Tamzin Merchant (born 1987), British actress
 * Tamzin Outhwaite (born 1970), British actress
 * Tamzin Thomas (born 1997), South African sprinter

Thomasin

 * Thomasin von Zirclaere or Tommasino Di Cerclaria (c.1186–c.1235), Italian Middle High German lyric poet.
 * Thomasin McKenzie (born 2000), New Zealand actress

Thomasina

 * Thomasina Jordan (?–1999), American Indian activist who became the first American Indian to serve in the United States Electoral College
 * Thomasina Miers (born 1976), British chef
 * Thomasina Pidgeon (born 1975), Canadian rock climber
 * Thomasina Winslow (1965-2023}, American blues musician
 * Thomazina Muliercula (died 1603), English jester at the court of Elizabeth I

Thomasine

 * Thomasine Christine Gyllembourg-Ehrensvärd (1773–1856), Danish author
 * Thomasine, Lady Percival (c. 1470–c. 1530), Cornish benefactress
 * Thomas(ine) Hall (c. 1603–after 1629), an intersex individual in British America
 * Margrethe Marie Thomasine Numsen (1705–1776), Danish courtier

Fictional Thomasinas

 * Beatrix Potter's Thomasina Tittlemouse.
 * Tamsin Yeobright from The Return of the Native by Thomas Hardy. Her name is given alternately as Tamsin or Thomasin throughout the book.
 * Thomasina, the feline heroine of the 1957 book Thomasina: The Cat Who Thought She Was God by Paul Gallico and The Three Lives of Thomasina, a 1964 Disney film based on the book.
 * Thomasina, a character in Tom Stoppard's Arcadia.
 * Thomasina, a character in the television series Kings.
 * "Thomasina", a song by The Besnard Lakes.
 * Tamsin, a character in the television series Lost Girl.
 * Thomasin, a character in Robert Eggers' 2015 film The Witch.
 * Tamasin Reedbourne, a character in C. J. Sansom's Shardlake book series.
 * Thomasina Tuckerton, a character in Agatha Christie's The Pale Horse.

Similar names

 * Thomas
 * Tammy
 * Tamara
 * Tamar
 * Tasmin
 * Tazmin
 * Thomasena