Helen Daniella Flanagan (born 7 August 1989 in Bury, England) is an English actress best known for playing the role of Rosie Webster in Coronation Street.

Helen's mother is a nurse. Helen has one brother named Thomas and two sisters called Jessica and Jayne. At the age of five, Helen began taking drama lessons at Carol Godby's theatre workshop in Bury, and attended Westholme School, an all-girls private school in Blackburn, Lancashire. Helen has completed her GCSE examinations and received good results, most notably an A* in Drama. Helen Flanagan is from Bolton in Lancashire.

She has been in a number of adverts, but has played Rosie since January 2000, taking over from Emma Collinge, who had played the character since birth. This is her first major television role.

Rosie turned into a Goth for a while in 2005 along with boyfriend Craig Harris (played by Richard Fleeshman) with whom she acted in a controversial under-age sex storyline. Her Gothic image caused friction with her on-screen parents, Sally and Kevin Webster (played by Sally Whittaker and Michael Le Vell, respectively).

In the 2006 British Soap Awards Helen was nominated for the Best Dramatic Performance for a Young Actor, however she lost to Ellis Hollins.