Emmanuel Wanyonyi (born 1 August 2004)[3] is a Kenyan middle-distance runner specializing in the 800 metres, who won the gold medal at the 2024 Summer Olympics in this event.

Due to insufficient funds, he dropped out of primary school at age 10 and worked as a cattle herder to help his family financially.

[11] In June 2024, Wanyonyi ran 1:41.70 to win the 800 m at the 2024 Athletics Kenya Olympic Trials, making him then the 3rd-fastest performer ever over 800 metres, behind Wilson Kipketer's 1:41.11 and David Rudisha's world record of 1:40.91.

In the final, he won the gold medal in a time of 1:41.19, surpassing Djamel Sedjati to become the third fastest man in history at the distance, behind only fellow Kenyan David Rudisha and Danish athlete Wilson Kipketer.

[15] Only one hundredth of a second behind Wanyonyi was the 2023 800m World Champion Marco Arop, who set a new North, Central American, and Caribbean area record.