Family name Roei (רועי 
, Roei 
, เริย 
) , globally, is a rare cognomen. The cognomen Roei is habitual in Israel, where it is a rare surname, Malaysia, and Netherlands, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Malaysia, Israel, and Colombia. Predominantly, Roei is the forename as well as the last name.