Roshendra Julienne Mercedes Vrolijk (born November 3, 1984) is an Aruban former swimmer, who specialized in sprint freestyle events.

Swimming in heat three, she edged out Armenia's Yuliana Mikheeva to pick up a sixth seed and sixty-second overall by 0.49 of a second in 29.31.

[2] In 2003, Vrolijk competed in eight events at the Swimming at the 2003 World Aquatics Championships held in Barcelona, Spain, her highest finish out of her eight events was 42nd in the 200 metres breaststroke,[3] and she won her heat in the 50 metres breaststroke but it still wasn't fast enough to qualify for the next round.

[4] The next month she swam at the 2003 Pan American Games held in Santo Domingo, Dominican Republic, she competed in the 50 metres freestyle where she finished in 23rd place out of 26 starters.

Vrolijk failed to advance into the semifinals, as she placed forty-ninth overall out of 75 swimmers on the last day of preliminaries.