Igor Alekseyev (Игорь Алексеев, born ) is a Russian male former weightlifter, who competed in the middle heavyweight class and represented Russia at international competitions. He later emigrated to Australia and competed for them after 1994.. He won the gold medal at the 1995 World Weightlifting Championships in the 91 kg category. He participated at the 1996 Summer Olympics in the 91 kg event.