He is also selected to Bangladesh national cricket team in the 2015 Cricket World Cup squad for his outstanding performance in domestic cricket in 2014 season. In group stage of WC, he took one wicket against Afghanistan, three against Scotland and two against England, which had a very important role to qualify in the quarter-final. The next time Bangladesh faced India was in Melbourne, the World Cup quarter-final. It was a full-strength Indian team this time around. Taskin impressed again by taking three wickets. He was the highest wicket-taker from Bangladesh in WC-2015. The epic celebration between Taskin and Mashrafe after getting wicket called "Chest-bump" was nominated as one of the most memorable moments of WC-2015.
He also had an important role to "Banglawash" Pakistan in April 2015 and series winning against India in June 2015.