Mantas Dilys (born 30 March 1984) is a Lithuanian triple jumper, who also competed as decathlete.
His personal record is 16.68 metres, reached at 2009 in Kaunas.
He represented Lithuania in 2009 World Championships in Athletics without reaching the final.
In addition, he is a three times National Championships medalist.
This biographical article relating to Lithuanian athletics is a stub.