Mary Rand will be awarded the freedom of Wells today.
In the 1964 Olympic Games she became the first British female athlete to win gold in track and field events.
Ms Rand grew up in Wells, but now lives in America.
The Freedom of the city ceremony takes place in the town hall at 2pm and is followed by a procession to St Cuthbert's Church.
More top news
Friends of a woman with a one-in-a-billion combination of two life-threatening illnesses are trying to raise £70,000 to send her to America
Investigations have begun into what caused a enormous fire to rip through student accommodation in the centre of Bristol.
Kingsholm are opening their gates to rugby fans for the final few games of the Rugby World Cup. The tournament brought in around £40m.