Dunith Wellalage
Born/Date of Birthday: 9 January 2003
Place of Birth: Srilanka

Dunith Wellalage (born 9 January 2003) is a Sri Lankan cricketer. He made his List A debut on 14 December 2019, for Lankan Cricket Club in the 2019–20 Invitation Limited Over Tournament.

In January 2022, he was named as the captain of Sri Lanka's team for the 2022 ICC Under-19 Cricket World Cup in the West Indies. In Sri Lanka's opening fixture of the tournament, he took a five-wicket haul, and was named the player of the match. In Sri Lanka's next match of the tournament, he took another five-wicket haul, and was again named the player of the match. In Sri Lanka's Super League playoff semi-final match against South Africa, Wellalage scored 113 runs, with Sri Lanka winning the match by 65 runs. He became the first captain of the Sri Lankan team to score a century in the Under-19 Cricket World Cup. He finished the Under-19 World Cup as the leading wicket-taker, with seventeen dismissals.