Igor Sergeyevich Son (born 16 November 1998) is a Kazakhstani weightlifter.

[1] In 2017, he competed in the men's 56 kg event at the Asian Indoor and Martial Arts Games held in Ashgabat, Turkmenistan.

He won the silver medal in the men's 55 kg event at the 2019 World Weightlifting Championships held in Pattaya, Thailand.

[3] In 2021, he won the bronze medal in the men's 61 kg event at the 2020 Summer Olympics in Tokyo, Japan.

Kazakhastan has a long history of doping among its professional athletes.