The full-back will wear the armband from next season.
Brighton & Hove Albion boss Chris Hughton has made Bruno his captain for the new 2016/17 season.
The Spanish right-back, who replaces Gordon Greer as skipper, is one of the club's longest-serving players and played every league game last season.
Manager Chris Hughton said, "Bruno is hugely respected by everyone in the squad, throughout the club, and by the fans.
"He's a fantastic professional and sets a superb example on and off the pitch. He stood in for Gordon Greer last season and he was the obvious choice as captain."
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Bruno added, "I'm really proud and it's a big responsibility for me. We know how important it is to be a captain in England, especially for a player who isn't from England.
"It doesn't change too much. I'm going to keep doing the same things. It's about being an example for the young lads and the rest of the players."
Albion's opening fixture of the new season is at Derby County on 6th August; the first EFL Championship games at the Amex will be against Nottingham Forest, with Rotherham visiting three days later.
Tickets are on sale for both home matches, while Derby tickets are available from Thursday 14th July. See seagullstickets.com for more information or click here for to view the full list of on-sale dates.