Lahser High School was a high school in Bloomfield Township, Oakland County, Michigan, near Bloomfield Hills and in Greater Detroit. It was a part of Bloomfield Hills Schools. The school was opened in 1967. At the time it had 200 students, and enrollment reached later almost 900 students. In 2010 the decision was made to merge the school into one school with local sister school Andover High School, on Andover's grounds. Lahser's athletic facilities will be kept for use by the new high school. The school is to become Bloomfield High School. The school received the International Baccalaureate program for the class of 2013 and beyond.