Akademik

a candidate for public office whose name does not appear on the ballot and so must be written on the ballot by the voters

write-in candidate [write-in candidate] noun (AmE)

a candidate in an election for public office whose name is not printed on the official list of candidates, usually because he or she has not been selected by a political party. People voting for such a candidate must therefore write his or her name on the voting paper. Some use this write-in vote, or write-in, as a form of protest by writing ridiculous names on the voting paper.