Dee Caffari, the first woman to sail single-handedly and non-stop around the world in both directions, and paralympic gold medallist Helena Lucas are backing the week-long event which will be the city's first official celebration of the sport.
Despite the fact it sits on one of the most popular stretches of water for sailing in the UK, Southampton has never had an official Sailing Week.
The event will run from May 24 to 29 and will feature numerous sailing-related activities both on and off the water for the public to take part in.
"It's fantastic that Southampton is finally having a week to celebrate sailing," said Southampton sailor Lucas.
"I am amazed this has not happened before and hopefully the whole city will get involved and get out on the water."
Caffari, from Titchfield, added: “Southampton Sailing Week is not just another regatta, it is a showcase week celebrating all the activities that take place in this vibrant area.
"What is really exciting is there are a multitude of ways to try and experience the water based activities throughout the week encouraging everyone to enjoy this area and its surroundings and be inspired to get involved."