Mike Tadjer Barbosa (born 10 March 1989) is a French-born Portuguese rugby union player who plays as a hooker for RC Massy in the Nationale, France’s third tier of rugby.

After a season at Racing Métro 92 (2008/09), where he won the French Pro D2, he returned to RC Massy, where he would play from 2009/10 to 2014/15.

He was involved in Os Lobos' successful 2023 Rugby World Cup qualifying campaign.

[3] He was selected to be a part of the Portugal squad for the 2023 Rugby World Cup in France.

Since Portugal didn't advance to the knockout stages, it was Tadjer's last match for his nation as he announced his retirement from international rugby.