Shelayna Oskan-Clarke (born 20 January 1990) is a British middle-distance runner. Shelayna is currently the British 800m champion. She competed in the 800 metres event at the 2015 World Championships in Athletics in Beijing, Where she finished 5th in the final. In 2016, she won the women's 800m at the Anniversary Games, and also reached the semi final at the Rio Olympic Games, narrowly missing out on a place in the final. In 2019, Shelayna took the gold medal at the European Athletics Indoor Championships in Glasgow.