Globally, สายไฟ (Wires 
, Cordes 
, สายไฟ 
) is a rare mostly masculine, but seldom female forename. The given name สายไฟ is habitual in Brazil, where it is a very rare dominantly male, but infrequently female name, the United States, and Nigeria, where it is an extremely rare gender-neutral name. Much more prevalently, สายไฟ is the last name as well as the forename.