- Schl⍥milch series
- Schmetterer, L.K.
- Schmid, H.L.
- Schmidt, E.
- Schmidt fundamental formula
- Schmidt group
- Schmidt orthogonalization
- Schmidt problem
- Schmid, W.
- Schmitt-Conway biprism
- Schnee, W.
- Schneider method
- Schneider, T.
- Schober, G.E.
- Schoenfeld, A.H.
- Schoenflies conjecture
- Schoenflies notation
- Schoenflies problem
- Schoenflies theorem
- Schoenflies (或Schonflies), A.M.
- scholion (= scholium)
- school
- schoolgirls problem
- Schott, G.
- Schottky, F.H.