The International Academy (IA) is a public, magnet high school with its main campus located in Bloomfield Township, Oakland County, Michigan, with additional campuses in White Lake Township, Michigan and Troy, Michigan.

Students are required to earn both high school and International Baccalaureate (IB) diplomas. In 2020, according to IA, 92% of the graduates earned IB diplomas, compared to the world average of 79%.

The school was founded at the initiative of Lambert Okma, who proposed it to the Bloomfield Hills School District in 1992. Okma previously taught economics at Bloomfield Hills Lahser High School. While teaching at Lahser, Okma attended a series of seminars with the educational outreach coordinator of The Federal Reserve Bank of Detroit, where they discussed how they felt that there was a necessity for education to respond to rapidly increasing globalization. Their response was to propose "a high school with an emphasis on developing skills and personal attributes needed to succeed in the international arena, using the international baccalaureate as its core."

International Academy opened in August 1996 with Okma as principal, and the school had its first graduates in May 2000. The Okma campus is officially hosted by the Bloomfield Hills School District, and the campuses collectively are managed by a consortium consisting of the Avondale, Berkley, Birmingham, Bloomfield Hills, Clawson, Huron Valley, Lake Orion, Rochester, Royal Oak, South Lyon, Troy, Waterford, and West Bloomfield school districts.

Okma retired from his position as principal at the end of the 2008-09 year, though he continues to work as an IB consultant for other districts.

IA was recognized by Newsweek magazine as the top public school in the nation in 2003, second in 2004, second in 2005, ninth in 2006, seventh in 2007, twelfth in 2008, second in 2009, 25th in 2010, 20th in 2011, 5th in 2012, 18th in 2013, 9th in 2014, and 8th in 2015. Newsweek's standings were based on the number of IB (International Baccalaureate) or AP (Advanced Placement) tests that the school averaged per graduating senior. The IA's high rankings are due to the full diploma program being required of all students, meaning they each sit for at least 6 IB exams in May of their senior year. Each senior therefore takes at least six IB tests (in addition to the Theory of Knowledge course; Creativity, Action, & Service hours; and Extended Essay requirements), giving the school a high average number of IB tests.

IA was recognized by the U.S. News & World Report as the second-best public high school in the nation in December 2009. Again earning this #2 ranking in 2011. In 2014, IA dropped down to 9th ranking. In 2016, IA was once again ranked 9th. The U.S. news used "quality-adjusted tests per student" as the criteria. The International Academy was also named the best public IB program in the country, with an "IB Diploma per Grade 12 student enrolled" rate of 90.4%. In 2021, IA ranked No. 43 in the United States and No. 3 in Michigan among public high schools according to U.S. News & World Report. In 2024, they rose to No. 8 ranking nationally and No. 1 ranking in Michigan.

According to IA, the Class of 2018 average SAT scores were 659 for Evidence-based Reading and Writing, and 721 for Math. The average ACT composite score was a 29.7. In addition, 57 members (16%) of the Class of 2018 were named National Merit Scholars, 30 of whom were Finalists.