Jahan is a Persian name that means "world" and is a frequent element in royal names of Iran and Mughal India; the emperor Shah Jahan, "king of the world", built the Taj Mahal. In the United States the name is used by Persian, South Asian and some African American families. Jahan stood at number 4669 in 2000, reached its best rank of 2859 in 2018 and sits at number 2957 in 2025.