Victoria Siddall (born 1977) is a British gallerist, and the director of the National Portrait Gallery in London.

[1] She was inaugural director of the Frieze Masters art fair, and a co-founder of environmental campaign groups the Gallery Climate Coalition and Murmur.

[2][3] Siddall was born in Northern Ireland, and as her father was in the army, the family lived in several countries.

[3] In 2024, Siddall co-founded the green campaign group Murmur, that encourages arts and music organisations to reduce their carbon footprint and 'cut ties' with fossil fuel companies.

[11] Siddall lives in Lambeth in South London, with her long-term partner François Chantala and their daughter.