Coal Point's Jaime Ryan will join older brother, Will Ryan, at a second Olympics after gaining Australia's 49er FX class spot with partner Tess Lloyd for the Tokyo Games.
Will Ryan and crewmate Mat Belcher, who claimed silver in the 2016 Rio Olympics, were declared Australia's 470 crew last October.
Jaime Ryan and Lloyd were announced as Australia's 49er FX crew on Thursday. Ryan was 15th with crewmate Carrie Smith in the women's 470 at Rio.
"It's interesting to try and compared and think how I felt this time four years ago," Ryan said.
"I think I'm equally as excited and equally as proud to have the chance to represent Australia.
"We've been improving all the way through with our sailing together. And we sort of got it together just in time, I think, and that's what we want to keep doing. Keep improving all the way through to the Games."
Brothers Sam and William Phillips were announced as the 49er class representatives.
The Nacra 17 class selection is still to be finalised. Lake Macquarie's Nathan and Haylee Outteridge have reportedly appealed against the selection of Jason Waterhouse and Lisa Darmanin. Nathan won 49er gold with Iain Jensen at London 2012.