Olga Nikolaevna Alimova (; born 10 April 1953) is a Russian politician who was a member of the State Duma for Saratov Oblast from 2011 to 2016 and from 2018 to 2021. She was re-elected to the State Duma in the 2021 Russian legislative elections. She is a member of the Communist Party of the Russian Federation, and is the leader of that party's Saratov branch. Alimova is an advocate for the re-introduction of the death penalty. Alimova received attention in October 2019, when she denounced indie video game Sex with Stalin as "disgusting".
From 2011 to 2019, during her tenure as a deputy of the State Duma of the 6th and 7th convocations, she co-authored 98 legislative initiatives and amendments to draft federal laws.
In October 2019, after the murder of a nine-year-old schoolgirl in Saratov, she advocated lifting the moratorium on the death penalty.
She also criticized the draft law on domestic violence developed by State Duma deputy Oksana Pushkina.