From Longman Dictionary of Contemporary Englishquizmasterquiz‧mas‧ter /ˈkwɪzˌmɑːstə $ -ˌmæstər/ noun [countable] British English x-refsomeone who asks people questions during a quiz SYN question master
Examples from the Corpus
quizmaster• You can't have a working party member who knows more than the quizmaster!• Russell Mulford was quizmaster, and teams were picked on the same principle as before. 