At Leaving Certificate Level, as well as offering non-exam subjects such as PE, Religious Education and Careers, Sligo Grammar School offers the following subjects:

• English
• Irish
• Maths
• History
• Geography
• Biology
• Chemistry
• Physics
• Agricultural Science
• Home Economics(Social and Scientific)
• Art (and Craftwork)
• Music
• Design and Computer Graphics
• Applied Maths
• Spanish
• French
• German
• Business
• Accountancy
• Construction Studies
• LCVP
• LCPE
• CASD (Climate Action and Sustainable Development)

Leaving Cert students 2015