More than 30 nationalities are represented at the school, and the annual ''day'' is aimed at celebrating the ''ethnic richness''.
The school encouraged pupils and teachers to dress in costumes representing their heritage, finishing off a week of in-class activities, including flag identification and mapping tasks.
On Friday the school celebrated with an international lunch, where food stalls provided culinary treats from Australia, India, Fiji, China, Japan, Korea, the Philippines, South America, the United Kingdom and the United States.
Following a parade of nations, Friday's assembly included items performed by pupils - an Irish dance, a Filipino dance, a Ghanaian drummer and the school's kapa haka group.