Cognomen Smyda (Smyda 
, Смида 
) , globally, is a rare last name. The cognomen Smyda is characteristic of Poland, where it is a rare surname, Denmark, where it is a very rare surname, and the United States. Measured by absolute frequency, it is commonest in Poland, the United States, and Russia. Also, Smyda is the forename as well as the last name.