Tamsin

Tamsin is a short form of Thomasina

Persons

Tamsin (given name)
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 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

Tamsin, a character in the Canadian television series Lost Girl
Tamsin Yeobright from The Return of the Native by Thomas Hardy. Her name is given alternately as Tamsin or Thomasin throughout the book.
Tamsin Drew, companion in the Doctor Who audio dramas.
Tamsin, character in Return of the Indian In The Cupboard