The 35-year-old will make his fourth Olympic appearance this summer as he defends his K1 1000m crown, having edged out Paul Wycherley in their best-of-three duel for the spot.
At Beijing 2008, Brabants also won K1 500m bronze but that event has now been removed from the Olympic schedule and replaced by the 200m with 2010 world champion Ed McKeever taking the British spot.
Other medal hopefuls for Great Britain include 2011 world silver medallists Liam Heath and Jonathan Schofield in the K2 200m and 2010 world bronze medallist Rachel Cawthorn in the K1 500m.
"I am delighted that our canoe sprint team has been officially selected today after what has been a tough process over the last two months," said GB performance director John Anderson.
"It is both the largest and the strongest team we have had in the last four Olympic Games and I would like to extend my congratulations to all the athletes and coaches and wish them all the best for the Games."
At Beijing 2008, Brabants became Great Britain’s first ever sprint canoeing Olympic gold medallist and along with his bronze four years ago, he also won K1 1000m at Sydney 2000.
And while he will be hoping to add to his Olympic medal tally, he believes McKeever as well as Heath and Schofield are also genuine medal contenders.
He said: "I am really excited to be selected for my fourth Olympic Games. Now the selection process is complete, I can really focus on defending my Olympic title in London 2012.
"I am also really looking forward to seeing the 200m boys racing and hopefully winning the medals they deserve."
Brabants aside, Great Britain’s only other Olympic medal winner was Ian Wynne, who won K1 500m bronze at Athens 2004, but British Olympic Association chief executive Andy Hunt is hopeful there will be more at Eton Dorney this summer.
"The Canoe Sprint team has really progressed since Tim Brabants won the first ever medal for Team GB by taking bronze in Sydney back in 2000," he said.
"The fans in attendance at Eton Dorney will be treated to a spectacular competition at a stunning venue and this is a great opportunity for our athletes to win medals on home waters.
"Having a veteran and defending Olympic champion like Tim in the team will be a huge inspiration to everyone involved, and it is a chance for the younger competitors and the debutants to use that kind of motivation to create their own Olympic legacy."