The Fiji international, whose full name is Mesulame, will arrive at Scotstoun from Fijian Drua, the current champions of the National Rugby Championship in Australia.
The 24-year-old has nine caps for his country and was last month named in the Fiji Rugby World Cup training squad.
He came off the bench in the Autumn Test against Scotland at BT Murrayfield in November and captained Fiji A against Uruguay, Argentina and Italy last summer.
Dolokoto, who had a spell with Super Rugby side the Brumbies in 2015, will join up with his new teammates at Scotstoun following his commitments with the Fiji national side.
Dolokoto told glasgowwarriors.org: "I'm very happy to be joining Glasgow Warriors and I'm looking forward to playing in two of the best rugby competitions in the world.
"The opportunity to learn from such an experienced coaching team and play in such a successful team is very exciting for me.
"The club has a strong Fijian history and I hope I can be a big part of it going forward."
"He isn't your traditional front-row forward, he likes to bring a bit of Fijian flair to his game, but he can also do the basics very well and we're excited to work with him when he shows up following international duty."