Sonja Margaret Loveday Davies ONZ JP (née Vile; 11 November 1923 – 12 June 2005) was a New Zealand trade unionist, peace campaigner, and Member of Parliament.

[3] Sonja Vile learned of her father's identity, Gerald Dempsey, when she was 20, but never made any contact.

The speeches by pacifists Ormond Burton and Archibald Barrington appealed to her social conscience but caused tension with her parents, and she consequently left home aged 16 supporting herself by work in bookshops.

In 1953 they moved into the city, where she became politically active in a campaign to stop the closure of the railway.

[5] Davies helped to found the Working Women's Council, and in 1974 she became the first female executive of the Federation of Labour.

The overall aim was to provide support and staff training to centres in order to increase the quality of care and education for preschool children.