Shani Anderson was born on 7 August 1975 in St Vincent and was a resident of Catford, London. She competed in the 2000 Sydney Olympics in the 4 × 100 m relay and the 100m. Shani now coaches athletics from club to Olympic level and started her own personal training company, Anderson Fitness Consultants. She has a personal training studio at The Armitage on Great Portland Street where she trains clients and she also runs corporate health & wellbeing events and programmes. She was educated in Dulwich, South London at James Allen's Girls' School.