A forgetful grandfather has won 200,000 in Australia after he accidentally bought three tickets for the same lottery draw.

The unnamed Sydney man bought a ticket before going abroad to celebrate his 60th birthday, reports Sky News.

Fearing the ticket was for the wrong draw, he asked a friend to buy a lottery ticket with the same numbers.

On his return from holiday, he was concerned his friend had not bought the right ticket, so bought a third.

He was one of 20 with the winning numbers. If he had stuck with just the one ticket, his winnings would have been only about 74,000.