Monimus (/ˈmɒnɪməs/; Ancient Greek: Μόνιμος; 4th century BC) of Syracuse, Magna Graecia, was a Cynic philosopher.

In order that he might become the pupil of Diogenes, Monimus feigned madness by throwing money around until his master discarded him.

[2] According to both Diogenes Laërtius[3] and Sextus Empiricus,[4] Monimus abolished the criterion, meaning that he rejected the idea that there was any standard of judgment for attaining knowledge.

[2] According to Sextus Empiricus, Monimus was like Anaxarchus because they "compared existing things to a scene-painting and supposed them to resemble the impressions experienced in sleep or madness.

[7]According to Stobaeus, Monimus also said that "it was better to lack sight than education, because under the first affliction, you fall to the ground, under the latter, deep underground,"[8] and he also said that "Wealth is the vomiting of Fortune.