big fish in a small pond

Noun

 * 1)  One who has achieved a high rank or is highly esteemed, but only in a small, relatively unimportant, or little known location or organization.

Translations

 * Chinese:
 * Mandarin:, 山大王,
 * Finnish: iso kala pienessä lammessa
 * Polish: duża ryba w małym stawie
 * Russian: пе́рвый па́рень на деревне
 * Slovene: prvi na vasi