Dame Sarah Valerie Falk, DBE PC (born 1 June 1962)^[1] is a British Court of Appeal judge. She was previously a High Court judge and senior Judicial Appointments Commissioner.

Falk studied law at Sidney Sussex College, Cambridge, and was admitted as a solicitor in 1986. Specialising in corporate tax she became a partner in Freshfields in 1994, notably working on the corporate restructure of EMI in 2011.^[2][3][4][5]

During her career at Freshfields, Falk noted she experienced sexism despite being a partner. In an interview, she said during her time there she would often be the only female attending meetings and male her colleagues in those meetings would demonstrate selective hearing, with a male colleague repeating a point she had made earlier which then would be treated as a good idea.^[6]

In 2015 she was appointed as a deputy judge of the Upper Tribunal (Tax and Chancery Chamber) having left Freshfields partnership while still working on a consultancy basis until 2018.^[3][1]

Falk married Marcus Flint in 1985, she has one son and one daughter. She has an interest in classical music, dog walking and horse riding.^[1]

She acted as chair of the ProCorda Trust, a youth music organisation, between 2008 and 2018.^[1]