Supporter

adherent

(person who supports, an adherent)

adherentka

(person who supports, an adherent)

kibic

(someone who is a fan of a certain sports team or sportsperson)

stronniczka

(person who supports, an adherent)

stronnik

(person who supports, an adherent)

trzymacze

(animal or figure that supports a shield in a coat of arms)

zwolenniczka

(person who supports, an adherent)

zwolennik

(person who supports, an adherent)