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- subprojective transfer
- sub-provincial city
- subpulse
- subquantitative gene
- subquark
- subquasigroup
- subquiver
- subquotient
- subquotient theorem
- Subra
- subradar point
- subradical
- subradular organ
- Subrahmanyan Chandrasekhar
- Subramaniam Lakshminarayana
- subrange
- subrank
- subrecursive hierarchy
- subrecursiveness
- subreflector
- subreflexive
- subrefraction
- subregion
- subregular
- subregular element