Colegio Arubano (English: Aruban High School) is a secondary school in Aruba that serves students in grades seven through twelve (measured in Ciclo Basico as equivalents to seventh and eighth grades and in VWO [four-year program] / HAVO [three-year program] as equivalents to American high school grades nine through twelve) from one of its two campuses in either the capital city of Oranjestad or the southern community of Sint Nicolaas.

For the HAVO section the student must choose from three different courses, or profiles: MM: Mens En Maatschappij (Economy, Management & Organisation, Statistics, Math and History), NW: Natuurwetenschappen (Math, Physics, Biology and Chemistry), and HU: Humaniora (Spanish, History, Geography, Economics and Drama classes).

Every period lasts 45 minutes, with the exception of the week in which the teachers and mentors of the students come together and discuss the report cards.

Certain subjects such as CKV (Acting/Dance/Music/Painting class) and LO (physical education) which are given once a week occur in a two-period timespan, thus lasting one hour and thirty minutes.

The number of hours given to each subject is generally equal to all classes of the same grade, with certain differences between HAVO and VWO.

Potential students take part in rigorous testing on the fields of mathematics and the Dutch language.

[5] It is believed that the number of students admitted to the school due to the newly introduced Domestic Continuance Exam will strongly increase.

The Key Club branch of Kiwanis Aruba on Colegio Arubano organizes several events, such as the selling of roses, candy and stuffed animals for Valentine's Day; bake sales; and fundraising for charity.

On the last official school day in 2014, balloons were prepared early in the morning, some containing glitter or ink.

Bottles are also filled with water and emptied on laughing or surprised students as a second resort for balloons.

This program allows students to enroll in a vocational university (Hoger Beroepsonderwijs) following the completion of their high school degree.

This program allows students to directly enroll to a university (Wetenschappelijk onderwijs) following the completion of their high school degree.