Elin Nordegren's Bikini Weekend -- Who's Ready to Rebound?

Breakups do a body good ... especially for Elin Nordegren ... who was flaunting her bikini hardbody just days after ending things with her Tiger Woods rebound guy Jamie Dingman.

The Swedish 32-year-old mother of two was hanging out in Miami this weekend ... after announcing her 1-year relationship with the wealthy businessman officially hit the skids.

Since divorcing Tiger, Elin has been busy buying a new $12 million North Palm Beach estate and then leveling it to build her dream home from the ground up.

Elin definitely looks like $100 million bucks.