Sigma Lambda Alpha (ΣΛΑ) is a scholastic honor society recognizing academic achievement among students in the field of Landscape Architecture.
The society was founded at University of Minnesota in 1977, and admitted to the Association of College Honor Societies in 1983, with full membership achieved in 1986.
Sigma Lamda Alpha honor society has 51 active chapters across the United States, and a total membership of around 8000.