Omalogyridae is a family of minute and microscopic sea snails, marine gastropod molluscs in the informal group Lower Heterobranchia. Omalogyrids are micromolluscs, among the smallest known, with adult shells usually smaller than 1 millimeter in diameter.

This family is poorly known and is tentatively placed in the unresolved infraclass "Lower Heterobranchia". Studies of this group are sketchy and miss or omit the basic information about taxonomy or distribution. They are globally distributed in shallow marine environments, where they feed on algae.

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