The team will be skippered by Wanindu Hasaranga, the country's selection committee said on Thursday.
The 36-year-old Mathews, who lifted the trophy in 2014, will be making his sixth T20 World Cup appearance at the biennial tournament, which will be co-hosted by twice champions West Indies and the United States from June 1-29.
Sri Lanka squad:
Wanindu Hasaranga (capt), Charith Asalanka (vice-capt), Kusal Mendis, Pathum Nissanka, Kamindu Mendis, Sadeera Samarawickrama, Angelo Mathews, Dasun Shanaka, Dhananjaya De Silva, Maheesh Theekshana, Dunith Wellalage, Dushmantha Chameera, Nuwan Thushara, Matheesha Pathirana, Dilshan Madushanka.Â
Travelling Reserves - Asitha Fernando, Vijayakanth Viyaskanth, Bhanuka Rajapaksa, Janith Liyanage.
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