International High School of San Francisco (familiarly known as International or IHS) is a private high school in Hayes Valley in San Francisco, California. The school is affiliated with the French American International School ("FAIS"). (FAIS is the K-8 school, and IHS is the high school.) Graduates earn either the International Baccalaureate ("IB") or the French Baccalaureate ("French Bac"). The IB curriculum is taught in English, while the French Bac is taught in French. A common misconception is that French is required to attend IHS. This is not true. Non-French speakers follow the IB curriculum. Approximately two-thirds to three-quarters of the students graduate with the IB diploma.