The city of Paris will honour slain Ugandan Olympic runner Rebecca Cheptegei by naming a sports venue after her, the French capital's mayor Anne Hidalgo announced on Friday.

Cheptegei, who competed in the women's marathon during the Paris Olympics last month, succumbed to severe burns on Thursday after being doused with petrol and set on fire by her boyfriend at her home in Kenya.

"She dazzled us here in Paris. We saw her. Her beauty, her strength, her freedom, and it was in all likelihood her beauty, strength and freedom which were intolerable for the person who committed this murder," Hidalgo told reporters.

"Paris will not forget her. We'll dedicate a sports venue to her so that her memory and her story remains among us and helps carry the message of equality, which is a message carried by the Olympic and Paralympic Games," Hidalgo added.

Cheptegei, 33, made her Olympic debut in the women's marathon at the Paris Games, where she finished 44th.

Police and doctors say she was left with 80 percent burns after being attacked in front of her children on Sunday by her Kenyan partner, Dickson Ndiema Marangach.

Her death, which the United Nations called a "violent murder", triggered widespread condemnation.

"The news of our daughter Rebecca Cheptegei's tragic death due to domestic violence is deeply disturbing," Janet Museveni, Uganda's First Lady and Education Minister, posted on X.

Kenyan Sports Minister Kipchumba Murkomen said it was a "stark reminder" that more must be done to combat gender-based violence.

The Paris Olympics organisers voiced their "profound indignation and sadness".