The spelling of the name "Americus Callahan" is fairly straightforward once you understand how to pronounce it. The first name is pronounced /əˈmɛrɪkəs/ (uh-MER-ih-kuhs), with the emphasis on the second syllable. The last name is pronounced /kæləhæn/ (KAL-uh-han), with the emphasis on the first syllable. When spelled out phonetically, this name can be easily pronounced by anyone, regardless of their native language or dialect. So, next time you encounter this name, you'll know exactly how to say it!