Sandra Locke "Sandy" Chalmers (29 February 1940 – 2 February 2015) was a British radio producer and broadcaster, who was editor of Woman's Hour on BBC Radio 4 in the 1980s.
She was born in Gatley, , Cheshire. Her father was an architect and her mother a medical secretary. She attended Withington Girls' School. As children, she and her older sister Judith appeared regularly on the BBC programme Children's Hour. Sandra Chalmers then studied English at Victoria University of Manchester (now Manchester University), becoming president of the Women Students' Union. She worked at the advertising agency J Walter Thompson in London, before starting to work regularly on radio in Manchester. In 1970 she became a senior producer, newsreader and host on the newly established station BBC Radio Manchester. Then, during the mid-1970s, she was appointed as manager of BBC Radio Stoke, becoming the first woman to manage a BBC local radio station.
In 1983 she was appointed editor of Woman's Hour, the first mother of young children to edit the programme. She was responsible for developing the use of phone-ins in the series. According to presenter Sue MacGregor, Chalmers "enlivened Woman’s Hour’s mix of the important, the frivolous, and the necessary: gender politics, women’s health, recipes, book readings, interviews with noteworthy women – and childcare. She had effectively been the single mother of young teenagers for some time." She created ‘It’s Your World’, a live phone-in radio show transmitted on both Radio 4 and the BBC World Service. She left Woman's Hour in 1987. In 1990, Sandy started the BBC’s Radio Press, Publicity and Promotions department, becoming its Head. She created visitor attraction ‘The BBC Experience’ and was appointed General Manager, External Affairs, for BBC Radio. She left the BBC in 1992.