The women's 1500 metres competition was an event at the 2012 Summer Olympics in London, United Kingdom. The competition was held at the Olympic Stadium from 6–10 August. The top two finishers were later found to have used prohibited drugs during this period, and subsequently disqualified. The current silver medalist, Tatyana Tomashova, had served a two-year doping ban (2008–2010) for manipulating samples and was banned after the Olympics for failing another drug test; and the 7th-place finisher Natallia Kareiva and the 9th-place finisher Yekaterina Kostetskaya were later disqualified after being found guilty of doping.

Tatyana Ivanovna Tomashova is a Russian distance runner.