Tamzin Merchant (born 4th March 1987) is an English actress. She is known for her role as Georgiana Darcy in Pride & Prejudice (2005 film version) and for her role as Catherine Howard in The Tudors.
Merchant's other credits include Margo Durrell in the 2005 BBC television film My Family and Other Animals. In 2006 she appeared in two more BBC dramas, as Sara Fox, the student daughter of Alan Davies and Michelle Gomez, in the comedy The Good Housekeeping Guide, and as Probationer Eastwood in the historical drama Casualty 1906. In 2008 she appeared in the ensemble drama Radio Cape Cod in which she plays a summer theatre camper dealing with issues of friendship and romance.