The winger has penned new terms to 2029.
Bournemouth’s President of Football Operations, Tiago Pinto, declared: “Marcus is a player who always gives his all whenever he wears the shirt and is someone that we thoroughly enjoy working with.
“He is a popular character within the dressing room and I’m looking forward to seeing his leadership shine through over the next few seasons at AFC Bournemouth, as the demands and challenges of the Premier League remain high.”
Tavernier also commented: “I’m very grateful for everything Bournemouth have given me over the past few years.
“I’m just delighted that they’ve shown their appreciation of me to sign a new extension and to stay at this club where I’m having such a great time.
“It’s a place that I’ve come to love and it’s my home away from home, so it’s a really good feeling, not just for myself but my family as well.
“We’ve started the season off very well, even in the first game where we gave a good showing against last season’s champions.
“Ever since then, we’ve shown the capabilities that we showed last season, so hopefully, it can long continue.”