| Country: | Russia |
| Birth Place: | Moscow, Russia |
| Death Place: | Moscow, Russia |
| Iccfworldchampion: | 1984–1992 (women) |
| Peakrating: | 2210 (January 1990) |
| Iccf Peakrating: | 2213 (July 1994) |
Liudmila Sergeyevna Belavenets (Russian: Людмила Сергеевна Белавенец; also transliterated Lyudmila Sergeevna Belavenets; 7 June 1940 – 7 November 2021) was a Russian chess player.
Born in Moscow, she was the daughter of Russian chess master Sergey Belavenets.
In correspondence chess, Belavenets was the fourth women's world champion (1984–1992)[1] and was awarded the titles of Lady Grandmaster and International Master in 1991.[2] In over-the-board chess, she won the Women's Soviet Chess Championship in 1975 and was awarded the title of Woman International Master by FIDE in 1977.[3] In 2010, she was awarded also the title of FIDE Senior Trainer.
Belavenets died from COVID-19 in Moscow on 7 November 2021, at age 81, amid the COVID-19 pandemic in Russia.[4]