Bullis Charter School (BCS) is a public charter school located in Los Altos, California, USA, for grades kindergarten through eighth. As the Santa Clara County Office of Education charters the school, BCS operates independently of the Los Altos School District (LASD). BCS differentiates itself from the LASD schools by providing "Focused Learning Goals", full-time teaching specialists in the arts and sciences, a Mandarin language program, and optional after-school activities.