|Box title = Nancy Osborne
|Image file = Nancy.jpg
|Image size = 280x300
|Row 1 title = Date of Birth
|Row 1 info = May 31st 1989 (age 27)
|Row 2 title = Occupation
|Row 2 info = Second Deputy Head at [[Hollyoaks High
|Row 3 title =Husband
|Row 3 info =Darren Osborne (2012-); Jake Dean (2008)
|Row 4 title = Family
|Row 4 info = Charles Hayton (Father)
Margaret Hayton (Mother)
Becca Dean (Sister)
Oscar Osborne (Son)
Charlie Dean (Nephew) |Row 5 title = Portrayed by |Row 5 info = Jessica Fox|Row 6 title = Home- 17 basswood lane |Row 7 title = Former homes |Row 7 info = 5 Oakdale Drive, Flat 1
The Dog in the Pond}} Nancy Anne Osborne (Previously Dean and Hayton) is a fictional character from the British Channel 4 soap opera Hollyoaks, played by Jessica Fox. The character first appeared on 6 July 2005. Since the character's inception she has been involved in many notable storylines such as a love triangle, marrying Jake Dean, drug abuse, domestic violence, being the victim of two attempted rapes, marrying Darren Osborne, giving birth to his son, Oscar Osborne, an addiction to painkillers, a highly publiscised storyline where Sienna Blake (Anna Passey) tried to steal Darren and her family away from her, Sienna seriously attacking her, giving her brain damage and her affair with Rick Spencer (Victor Gardener).
On Nancy's personality, Fox described her as different from other Hollyoaks girls, dubbing her the "anti-Hollyoaks girl". She said that Nancy has "always got some kind of bitchy comeback for everyone". She explained that Nancy "says that you don’t have to be the skinny blonde or the skinny brunette, you can be the one who does whatever the hell she likes".
Nancy arrives in Hollyoaks to visit sister Becca Dean and later begins living with Becca. Nancy has a brief relationship with Justin Burton, who is having a secret relationship with Becca and uses Nancy to make Becca jealous. Nancy enters a relationship with Foz. Nancy and Hannah Ashworth babysit for Mandy Richardson and Tony Hutchinson's daughter, Grace. Nancy and Hannah discover Grace dead and blame themselves until they are informed Grace died of SIDS. Nancy begins dealing with the fall out of Becca's affair with her pupil Justin Burton, whilst trying to keep her own relationship with Foz together. Nancy abuses recreational drugs at the in a bid to fit in with Foz. When Becca is murdered in prison Nancy is left to care for nephew Charlie Dean. Foz soon after leaves to go travelling. Nancy begins taking prescription drugs while taking her A-level examinations.
- 2010-2014: She sits on a sofa on a magazine style background.
- 2014-16: She blows an origami bird out of her hand.
- 2016-: Nancy and Darren sit on a carousel and go around.