- English (New Junior Cycle)
- Technical Graphics
- Business Studies
- Physical Education
- Wood Technology
- Metal Technology
- Home Economics
- Religion (this is not an exam subject in Coláiste Treasa)
- S.P.H.E (Social, Personal & Health Education)
- Traditional Music
First year students Sample all subjects.
In second and third year, students study; Irish, Maths, English, Science and CSPE and select four other subjects from the list above. The option lines are arranged to best reflect the preferences of the students.
In addition to the normal class curriculum in Music, student may choose to have lessons in Piano, Traditional Music, Harp and Choir.