"one who organizes," 1795, agent noun from organize.
Entries linking to organizer
organize v.
early 15c., organisen, "to construct, establish," from Old French organiser and directly from Medieval Latin organizare, from Latin organum "instrument, organ" (see organ). Meaning "to form into a whole consisting of interdependent parts" is from 1630s. The intransitive sense of "assume an organic structure" is by 1880. Related: Organized; organizing; organizable.
organiser n.
chiefly British English spelling of organizer (q.v.); for spelling, see -ize.