There was some doubt whether Constantine Louloudis could recover from a back injury to be picked for the squad but the Oxford Boat Race champ has been selected and the crew stand a good chance of winning a medal at London 2012.
Louloudis, aged 20, won the gold in the men's pair with George Nash at the 2011 under-23 World Championships in Amsterdam and will hope to be on the medal podium again.
Team GB rowing team leader David Tanner said: "It is good news that Constantine Louloudis is now fully recovered from his injury and as an exciting young prospect I'm sure he can really add something to our men's eight.
"I'm very pleased that this completes the names for all 52 qualified slots."
Other confirmed squad members include the two openweight men's rowing reserves Marcus Bateman and Cameron Nichol, while Adam Freeman-Pask and Paul Mattick were named as the reserves in the lightweight category.
Meanwhile, Dai Green has been named as the captain of the Team GB athletics squad at the Olympic Games.
"It is an incredible privilege to be asked to captain the British athletics team at any time but to be given the honour at a home Olympic Games is just incredible," said the 400-metre world champion.
Charles van Commenee, the head coach of UK Athletics, added that the Welshman is a well-liked member of the team, who offers experience as well as a good sense of humour that will boost the squad during the Games.
Greene won the European and Commonwealth titles in 2010 and last year took the world championship gold in Daegu, South Korea.
Those staying in central London hotels this summer will know that the Olympic Games start on July 27th with a much anticipated opening ceremony.