Coláiste Phádraig (St. Patrick's College) is a Christian Brothers secondary school for boys in Lucan, County Dublin, Ireland.

[3] It is located in an estate called Roselawn with a relatively large campus that includes three basketball courts, two football pitches, a large school building and a modern sports hall which includes a school gym.

During the 1970s, in order to accommodate the increasing student population, more prefabs were added, until a new school building was commissioned, ultimately opening in 1978.

[5] Further growth and development occurred, resulting in an increase in the staff size of the school to thirty by the turn of the decade.

[7] The extension contained computer and science labs and a careers library in addition to new metalwork and woodwork rooms and a gym were also added.

The school consistently takes part in the BT Young Scientist competition, and has produced multiple award winners at the exhibition.

[22] Due to these victories, Coláiste Phadráig CBS is considered one of the best non-Gaelscoil schools in teaching and promoting Gaeilge as a language.