The Swiss Academy of Sciences (SCNAT) is a Swiss national association founded in 1815. In German, French and Italian (the official languages of Switzerland) the name is Akademie der Naturwissenschaften Schweiz, Académie suisse des sciences naturelles, and Accademia svizzera di scienze naturali respectively.

The Swiss Academy of Sciences is part of the Swiss Academies of Arts and Sciences, and awards the annual Prix Schläfli.