Neso may refer to:
Neso (mythology), several figures in Greek mythology, including: Neso, one of the Nereids Neso (moon), the second-outermost moon of Neptune Neso Lake, a glacial lake in Manitoba, Canada National Energy System Operator, the UK national energy grid operator since October 2024 North East Students' Organization, India Nešo Šćepović, Montenegrin businessman and politician
See also Nesso, a comune in Como, Lombardy, Italy