Lyn Collingwood (born 6 September 1936; Sydney) is an Australian actress. Collingwood was cast as Colleen Smart on Home and Away and was recurring character in 1988–1989, and returned in 1997 for one episode and then returned in 1999 as regular character.
Collingwood has worked as a social worker and an English, drama and history teacher. She has also worked in research and as an editor of The Australian Encyclopaedia, The Cambridge Encyclopaedia of Australia and The New Age Encyclopaedia. 
- 1983: Scarface as Gina Gonaz
- 1988–1989 1997 1999–present: Home and Away as Colleen Smart
- 1999: All Saints as Laraine Parkes
- 1997: Murder Call as Mother Agnes
- 1987–1990: A Country Practice as Jean Quigley/June Nunn
Born on the 6th September in Sydney, Lyn plays one of Summer Bay’s favourite characters.
Die-hard fans of the series will remember Lyn in the early days of Home and Away. Fourteen years down the track Lyn returned once again to Summer Bay to take up the role of Colleen.
Lyn is a familiar face of theatre, television and film and has been involved in films including Round Up, Children Of The Revolution, Spontaneous Combustion, The City’s Edge and Annie’s Coming Out, just to name a few.
Lyn’s television work includes Number 96, Young Doctors, Restless Years, BMX Bandits, E-Street, Rafferty’s Rules, A Country Practice and All Saints.
Lyn has also done her fair share of commercials, usually playing the role of the mother serving food to her family, as she recalls.
Lyn has been involved in editorial and research work for The Australian Encyclopaedia, The Cambridge Encyclopaedia of Australia and The New Age Encyclopaedia.
In a former career, Lyn was once a Drama, English and History teacher and has also worked as a social worker.
Lyn Collingwood has many hobbies and when time permits, she enjoys theatre, cryptic crosswords, oki yoga, bush walking and current affairs. Lyn has lots of projects on the go, including encouraging young film-makers in the Newtown Film Festival.
Lyn was born under the Zodiac sign of Virgo.