Surname מרמן (Merman 
, מרמן 
) , around the globe, is a rare cognomen. The last name מרמן is characteristic of Estonia, where it is quite a rare surname, Israel, where it is a rare surname, and Singapore. Not in comparison with a country's population, it is the most numerous in the United States, Israel, and Malaysia. Likewise, מרמן is the forename as well as the last name.