The assault happened at about 9.50pm on Wednesday (October 22), on The Green, Acomb, close to the junction with Danebury Drive.
As she walked towards Tostig Avenue, the 44-year-old woman was verbally abused by three men who were sitting on a bench.
One of the group then approached her and punched her face. As a result she suffered bruising to her right cheek.
The suspect is described as a white man, aged in his twenties and around 5ft 8in, tall with a slim build.
At the time he was wearing a black and white hooded top, blue jeans and white trainers.
Victim ‘shaken’
“This assault has naturally left the victim feeling shaken by her experience,” said PC Chris Storey, of York Safer Neighbourhood Team.
“If you witnessed the assault I urge you to come forward and contact the police straight away as you may have vital information which could help my enquiries.”
Anyone who can help should contact York police on 101, select option 2 and ask for Chris Storey.
Alternatively, information can be emailed to [email protected].
Or call Crimestoppers anonymously on 0800 555111, quoting reference number 12140182733.