Barcelona move reduced me to tears - defender says
The France international, who played in his country's run to finish runners-up in Euro 2016, was presented to the media on Friday following his €25million move from Lyon.
Umtiti targeted winning every possible trophy during his stay at Barca and is in the early stages of learning the Catalan language after signing a five-year deal.
"I must thank all the people who have made this move possible," he said.
"When I knew I had the possibility to come to Barca it really touched me, I cried a little even though I tried to hide my emotions.
"It has been a dream of mine - since childhood I wanted to come here. I'm very happy and excited to be here.
"I can't wait to play alongside these great players. I came here to progress and learn a lot with players who have more experience than me.
"I'm already learning Catalan, but I don't speak it very well at the moment. I have come to the best club in the world and I hope to win everything here."
Umtiti is only 22, but the centre-back wants to force his way into Barca's starting line-up immediately.
He continued: "My standards are very high, I'm a player and competitor and want to play. I will work hard and show that I have the quality to help the club, I know there a good players in my position.
"I am grateful for this chance, I hope to adapt and settle in quickly."