Hailing from Sydney and a former member of the Waratahs Academy system, Smith has 43 Super Rugby caps after making his debut against the Blues in 2010.
The centre featured against the British and Irish Lions last summer when the Brumbies were the only provincial side to defeat them.
Looking ahead to the move Smith said, "I'm really looking forward to joining Munster and making the most of the opportunity. Laurie Fisher has always spoken highly about the team and culture. It's definitely somewhere I want to go and make an impact, working closely with the boys and training hard. I've no doubt it will be a great experience and I can't wait to get stuck in."
On confirming the signing Munster Rugby CEO Garrett Fitzgerald said, "We look forward to welcoming Andrew when he arrives at the end of his Super 15 commitments with the Brumbies. We are delighted to have secured the services of a player of his calibre for next season."
Name: Andrew Smith
Height: 1.94m (6' 4")
Weight: 104kg (16st 5lb)
Born: Sydney, NSW