Monotheist

(n.) One who believes that there is but one God.

Thesaurus Entries

allotheist, anthropolater, anthropotheist, autotheist, cosmotheist, deist, ditheist, dualist, henotheist, hylotheist, multitheist, myriotheist, pantheist, physitheist, polytheist, psychotheist, tetratheist, theist, theriotheist, tritheist, zootheist