saint-simonian

from The Century Dictionary.

• Pertaining to or believing in the principles of Saint-Simon or Saint-Simonism.
• noun A follower of Saint-Simon; a believer in the principles of Saint-Simonism.

from the GNU version of the Collaborative International Dictionary of English.

• noun A follower of the Count de St. Simon, who died in 1825, and who maintained that the principle of property held in common, and the just division of the fruits of common labor among the members of society, are the true remedy for the social evils which exist.