Last name Gennedy (Gennedy 
) , globally, is a very rare surname. The family name Gennedy is habitual in Nicaragua, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and the United States. Not in comparison with a country's population, this name is the most popular in the United States, Mexico, and Nicaragua. Likewise, Gennedy is the forename as well as the last name.