Portadown College is an academically selective, co-educational post-14 grammar school in Portadown, County Armagh, Northern Ireland.

The school's pupils are divided into historical houses. The three houses are Shillington, Seale, and MacCallum (yellow). The house structure provides the basis for a wide range of inter-house competitions, including sports, music and debating.

The houses are named after the following:

• MacCallum is named after RAF Gp Capt John Evelyn Matier MacCallum, a former pupil and rugby captain. He was killed in action in 1943, during World War II.
• Seale is named after brothers RAF Sqn Ldr W. T. C. Seale and Lt. Theophilus John Seale of the Royal Irish Fusiliers. The two brothers were killed in action during World War II in 1941 and 1944 respectively.
• Shillington is named after three individuals. They are Ulster Unionist politician Major David Graham Shillington, Tom Shillington and Lt. Geoffrey St. George Shillington Cather VC. The latter was killed during the Battle of the Somme in the Great War in 1916.

Portadown College has been officially recognised in the field of sporting excellence and has been awarded the status of a Sportsmark School.^[5] Representative teams participate in Rugby, Boys and Girls Hockey, Netball, Football, Volleyball, Golf, Tennis, Cricket, Rowing and Athletics.

The School Rugby teams compete annually in the Ulster Schools Cup, with the best performance the reaching of the semi-finals. The Subsidiary Shield has been won three times in 1973, 1990 and 1997.^[6][7] In 2010 the 1st XV Rugby Team won the Ulster Schools Trophy.^[8][9]

Girls' hockey teams enjoy success in the Belfast Telegraph Ulster Schools Cup and McDowell Cup competitions. Portadown College hockey teams have won the trophy on three occasions in 1963, 1964 and the most recent win in 1996.^[10][11][12]

The Under 18 Boys Volleyball team are current Northern Ireland and All Ireland Champions and the under 16 Boys Volleyball team are current Northern Ireland and All Ireland Champions. The Under 18 Boys Hockey Team are the current Great British Champions after beating RBAI 2nd XI 4–3 in the final.

Subjects such as geography, home economics and ICT have miscellaneous classrooms throughout the school. There are over 20 subjects taught at the school, which are served by approximately 50 classrooms, subject study rooms and technicians. The school's science department is one of the largest and best-funded science departments in Northern Ireland. Modern language subjects on offer include, French and Spanish. The school discontinued its teaching of German as a GCSE in 2017 and Latin was removed from the school curriculum many years ago

Sports facilities include three rugby pitches, two all-weather pitches, two outdoor basketball courts, two tennis courts, a synthetic cricket pitch, two long jump sand pits and a concrete throwing circle for discus and shot put events. There is also a dedicated sports hall with gym and a second indoor sports hall. Although sport plays a key role in the school's extracurricular activities, there are a number of other societies that include: drama, debating, Duke Of Edinburgh Award expedition and charity group.

Until Late 2019, 814 (Portadown College) Squadron of NI Wing, Air Training Corps was Headquartered at the school. The 814 No. Remains in service in the town with the new 814 (Portadown) Squadron.

Like many grammar schools in Northern Ireland, academic selection is at the heart of admission to Portadown College. The college became a selective grammar school in 1969, accepting students to the Senior School at 14 after transferring from local Junior High Schools. The school usually accepts 200 students to study GCSEs each year. After this, students who achieve at least 5 B-grades and 3 C-grades at GCSE are accepted to study A-levels. Portadown College consistently produces GCSE results above Northern Ireland averages. In 2017 93.7% of GCSE results from the school were A*-C grades, compared to a Northern Ireland average of 80.9% in the same year.^[13] The school also has one of the largest Sixth Forms in Northern Ireland.

This article's list of alumni may not follow Wikipedia's verifiability policy. (April 2022)

• Rory Best, Ulster and Ireland rugby union player and captain
• Simon Best, Ulster and Ireland rugby union player
• Dame Mary Peters MBE, Lord Lieutenant of Belfast and Olympic Gold Medallist
• Gloria Hunniford, BBC Television Personality
• Newton Emerson, political commentator and satirist who founded the Portadown News
• Waldo Maguire, BBC broadcaster, WW2 codebreaker
• Tom McGurk, Journalist, television presenter
• Ernest Nicholson, theologian, Biblical scholar and Provost of Oriel College, Oxford
• Mark Russell, Chief Executive of The Children’s Society
• Colin Turkington, Auto Racer
• Emma Pengelly, MP for South Belfast
• Major General Colin Weir DSO MBE, Senior British Army Officer