While the Rowan spelling is in the Top 1000 for both boys and girls, this spelling is much more unusual and more heavily weighted toward the boys' side. That may be because of its spelling similarity to stylish brothers Owen and Bowen.

About seven times as many babies of both genders are named Rowan over Rowen, making this by far the secondary spelling. Rowan is used twice as often for boys, while Rowen runs three to one in the boys' favor, with about 300 boys named Rowen in a recent year compared with about 100 girls. That may be because of this spelling's similarity to Owen.