admirer

(noun) a person who backs a politician or a team etc.. Synonyms: supporter, protagonist, champion, booster, friend. Examples: "All their supporters came out for the game." "They are friends of the library."

(noun) a person who admires; someone who esteems or respects or approves.

(noun) someone who admires a young woman. Synonyms: adorer. Example: "She had many admirers."