Burns will replace fellow Australian and Middlesex captain Adam Voges, who will leave to join the Australia squad on their tour of the West Indies ahead of this summer’s Ashes series.
Burns will join Middlesex after scoring 800 runs for Queensland in Australia???s domestic Sheffield Shield competition – at an average of 53 – and earning a Test debut for Australia against India.
The 25-year-old, who had a spell at Leicestershire in 2013, said: ???I???m looking forward to joining my team-mates in May as I’ve heard great things about the club culture.
???The chance to call Lord???s home is going to be special. The club has high ambitions for success in Division One, which was important for me. I am thrilled to get the opportunity to contribute to what is hopefully a very successful period for the club.???
Middlesex???s managing director of cricket, Angus Fraser, said Burns???s international ambitions would be a boon to the club.
???We are delighted to be signing a hungry young Australian who will be desperate to show everyone what he is capable of doing,??? Fraser said.
???Joe is an exciting young batsman who has had an excellent winter and was unfortunate to miss out on Australia???s tours. Ironically, it is probably Adam Voges who took his place in the touring party. He has experience of batting anywhere in the top six, is a very good limited overs player and is an excellent fielder.???
Both Burns and Voges will both be available to play in Middlesex???s opening NatWest T20 Blast fixture against Gloucestershire at Bristol.??
Burns will then be available to play in seven County Championship matches and eleven NatWest T20 Blast games but will leave on 18 July to join the Australia ‘A’ squad for their tour of India.