Continuing on from her strong performance at EuroBasket Women 2017, Meesseman led the Belgium women's national basketball team to a top finish in group C, besting (then second-ranked team in the world) Spain. The Belgian Cats next beat (the then third-ranked team in the world) France in the quarter-final only to lose against the top-ranked team in the world (USA) in the semi-final. Beaten in the bronze medal game by Spain, the Belgian women registered a 4th-place finish at their first FIBA Women's Basketball World Cup. Meesseman, averaging the most rebounds per game (10.7) and the second most points per game (18.5) at the tournament, was selected to the Tournament All-Star Five.