Sophie Hosking, from Wimbledon, was also awarded an MBE for services to rowing.
The athlete, who won gold in the Lightweight Women's Double Scull at London 2012, learned to row at school in Kingston and now trains at the London Rowing Club in Putney.
More top news
A man in his twenties has died from stab wounds after police were called to a disturbance at the Stratford Centre on Tuesday night.
A nanny was put under pressure to confirm claims that a former Boyzone star had drugged and sexually abused the household, a court heard.
Claire Ptak said she was thrilled to be chosen to bake the royal wedding cake of organic lemon elderflower.