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The International School of Samui โรงเรียนนานาชาติสมุย
Location
Koh Samui Thailand
Coordinates	9°32′40″N 100°02′44″E / 9.544545°N 100.045559°E / 9.544545; 100.045559
Information
Type	Private international school
Established	September 2006
Grades	K–13
Enrollment	300

The International School of Samui (ISS; Thai: โรงเรียนนานาชาติสมุย, RTGS: Rong Rian Nana Chat Samui) is an international school on the island of Koh Samui in Thailand.

Its curriculum is structured in accordance with the National Curriculum of England. The majority of the teaching staff are British and are recruited from the UK. The sole language of instruction is English. The school has 300 students, both boys and girls from 3 to 18 years of age, currently enrolled from 35 different countries. It is organised into 4 phases: Early Years, Primary School, Senior School and Sixth Form.

ISS was founded in 2007 under its old name of Bluewater by former Headmaster, Mr. Jeremy Lees, a UK Qualified Teacher, ISI International School Inspector and former British Army Officer and Helicopter Pilot. Mr Lees remains President of the Board of Governors.

Mr. Stephen Andrews joined ISS in 2018 and currently is the CEO bringing with him a wealth of leadership and management experience from the international school and university sectors. Mr. Andrews has responsibility for the leadership and management of the school.

ISS is accredited by Education Development Trust (EDT) & International School's Quality Mark (ISQM), formally known as CfBT. ISS is an accredited Cambridge International Examinations Centre (CiE), Pearson EdExcel Examinations Centre, and member of ISAT (International Schools Association of Thailand).

There are 3 houses in the Primary School named after mythical creatures:

• Phoenix (Red)
• Griffin (Blue)
• Pegasus (Green)

There are 2 houses in Senior School:

• Oxford (Oxford Blue) - Lincoln, Somerville and Trinity
• Cambridge (Cambridge Blue) - Darwin, Selwyn and Wolfson

Each house is led by a House Captain and all students are enrolled in the Houses. Competitions and activities are held throughout the year to win House trophies given at the end of the academic year on Speech Day.