podnosilac zahteva

1. applicant
   U obrascu upišite podatke podnosioca zahteva. — Enter the applicant's details in the form.
   Podnosilac zahteva mora lično da dođe na šalter. — The applicant must come to the counter in person.

For a woman, "podnositeljka zahteva" is sometimes used, but forms usually keep the masculine form.