Mid-Pacific Institute seal
|2445 Kaala Street|
Honolulu, Hawaii 96822
MID-PACIFIC INSTITUTE Latitude and Longitude:
|Type||Private, Day, College-prep|
|Motto||The Honor of My School is Mine|
|Campus size||38 acres (0.15 km2)|
|Color(s)||Green and white|
|Athletics||Mid-Pacific Owls and Pac-5 Wolfpack|
|Athletics conference||Interscholastic League of Honolulu|
|Mascot||Pueo (Hawaiian short-eared owl)|
Mid-Pacific Institute is a private, co-educational college preparatory school for grades preschool through twelve with an approximate enrollment of 1,550 students, the majority of whom are from Hawaii (although many also come from other states and other countries, such as Japan, Korea, China, Canada, Australia, Marshall Islands and countries in Europe and Africa). The school offers programs of study in the International Baccalaureate Diploma Programme and the Mid-Pacific School of the Arts (MPSA). Mid-Pacific Institute is located on 38 acres (150,000 m2) in Manoa, near the University of Hawaii, close to downtown Honolulu.
The high school was established through the 1908 merger of Kawaiahaʻo Seminary for Girls, founded in 1864, and Mills Institute for Boys, founded in 1892. Both schools were founded by missionaries, with the goal of teaching English to native Hawaiians, Japanese, Chinese and other nationalities. It was established that the school must remain Christian so long as the original land was in use. However, students are allowed to practice any religion of their choice. Even members of the Hawaiian royal family attended the schools.  By opening its doors to students with no prejudice over race and class status, Mid-Pacific was a part of a growing movement toward greater social acceptance that was rarely seen in the repressive oligarchical control within the Territory of Hawaii. 
A merger of the two schools was suggested in 1905 and the Hawaiian Board of Foreign Missions purchased 35 acres of land in Manoa valley. A ceremony was held on May 31, 1906 for the new school campus, which officially opened in 1908. The two schools continued to operate independently while co-existing in the new campus until the coeducation plan went into effect in the fall of 1922 and by June 1923 Mid-Pacific Institute became the common shared name. 
The school added an elementary school when it merged with Epiphany School (which had been established as an elementary mission school by the Episcopal Church in 1937) in 2004.  The school had an on-campus dormitory from 1908 until it was closed in November 2003  and replaced by the new elementary school. 
The Mid-Pacific School of the Arts offers a preprofessional certificate program in dance, instrumental music, drama, and fine arts. The MPSA is the only certified program of its kind in the state of Hawaii. Students who complete their studies often move on to professional conservatories and other schools of performing and fine arts. MPI is unique in requiring all of its students to take a number of arts electives.
The Mid-Pacific School of the Arts, which was formally established in 1991, is a member of the International Network of Performing and Visual Arts Schools and was among the first six schools in the nation to be recognized by the organization as a Network Star School. It also received the Arts Excellence Award from the Hawaii Alliance for Arts Education. 
The International Baccalaureate Diploma Programme is a widely recognized and highly regarded two-year pre-university educational program that emphasizes rigorous, internationally-based curriculum standards and promotes awareness and appreciation of global issues and perspectives.  Students must take six subjects, and must also pass 3 extra requirements, for example, Theory of Knowledge (ToK), a 4000-word Extended Essay (EE), and a requirement of at least a total of 150 hours in CAS (Creativity, Action, Service). Mid-Pacific Institute was the first secondary school in the state of Hawaii to offer the International Baccalaureate Diploma Programme. The IB is administered by the International Baccalaureate Organization, which was founded in the 1968 in Geneva, Switzerland.
The school's athletic affiliation is with the Interscholastic League of Honolulu. Mid-Pacific participates in intermediate, junior varsity and varsity level soccer, cross country, track & field, golf, softball, baseball, basketball, canoe paddling, tennis, bowling, volleyball, swimming and kayaking. Mid-Pacific Institute is one of nineteen smaller private schools that make up a larger unified team called Pac-5 Wolfpack, which allows the students to participate in certain high school athletic competition. Pac-Five began 35 years ago to allow smaller institutions (of 1000 or fewer students per school) to form a football team and compete at a varsity level with bigger schools.  Now, Pac-5 competes in football, wrestling, judo and water polo.
Mid-Pacific Institute has won state championships in baseball (1990-1992, 2002, 2013), Girls' Basketball (2017), Girls' Soccer (2011-2013), Boys' Soccer (2008, 2010, 2014, 2015), Boys' Sporter Air Riflery (2013, 2015, 2018), Girls' Sporter Air Riflery (2014, 2018), Girls' Swimming & Diving (2013, 2015), Boys' Canoe Paddling (2007), Boys' Golf (1985) and Softball (2011-2012).  Through their affiliation with Pac-Five, they have also been part of state Football championships in 1982 and 1985. 
High above thee Mid-Pacific
Mountains greet the sun,
And Leahi watches o'er thee
When the day is done.
Cradled 'round by sea and mountain
In Manoa's lands,
So within our hearts safe cherished,
Sons and daughters of all nations
Meet within thy halls,
Bound by ties of deep affection
For thy vine clad walls.
Out among the world's great peoples
May thy children go,
Bearing forth thy kindly spirit
Brotherhood to show.
Mid-Pacific, Alma Mater
We thy banners raise,
Mid-Pacific, Alma Mater
Loud we sing thy praise.
- Keiko Agena ('91), actor
- Daniel Bess ('95), actor
- Ayaka Kimura ('00), former member of Coconuts Musume in Hello! Project
- Maxine Hong Kingston, novelist, former faculty member
- Isiah Kiner-Falefa ('13), professional baseball infielder for the Texas Rangers (baseball) of Major League Baseball 
- Rob Letterman ('88), American film director, writer and voice actor
- Lisa Matsumoto, author and playwright
- Chuck Mau ('26), former Hawaii Democratic Party Chairman 
- Ronald Moon ('58), Chief Justice of the Hawaii State Supreme Court
- Steere Noda ('11), former member of Hawaii Senate
- Peter Steigerwald ('92), comic book artist for Top Cow and later Aspen Comics
- Young, Peter T. (2013-05-31). "Mid-Pacific Institute". Ho‘okuleana. Retrieved 14 March 2011.
- Fuchs, Lawrence H. (1961). Hawaii Pono: A Social History. New York: Harcourt Trade Publishers. p. 267. ISBN 015139539X.
- Na Pueo staff (2004-04-19). "Improvements are expected now that Epiphany School has joined the MPI family". Star Bulletin. Retrieved September 9, 2013.
- DePledge, Derrick (November 15, 2003). "School To Move Students To Hotel". Honolulu Advertiser. Retrieved 14 March 2011.
- Kogachi, Kaitlin (July 30, 2012). "Mid-Pacific Institute sparks big changes with iPads". Hawaii News Now. Retrieved September 9, 2013.
- "One to One Education Initiative". Archived from the original on September 14, 2013. Retrieved September 9, 2013.
- "Mid-Pacific Institute School of the Arts". Mid-Pacific Institute. Archived from the original on 13 September 2013. Retrieved 9 September 2013.
- "MPI Family Handbook" (PDF). Archived from the original (PDF) on 2012-03-21.
- Stinar, Jamie (April 8, 2004). "Pac-5 more than a game to its dedicated athletes". Hawaii Star Bulletin.
- "Mid-Pacific Institute HHSAA Championship Records". Sportshigh.com. Retrieved 2013-09-09.
- "Pac-Five HHSAA Championship Records". Sportshigh.com. Retrieved 2013-09-09.
- "07/08 High School Handbook" (PDF). Archived from the original (PDF) on 13 May 2008. Retrieved 9 September 2013.
- Coffman, Tom (2003). The Island Edge of Hawaii. Honolulu: University of Hawaii Press. p. 112. ISBN 978-0-8248-2662-8.