This decision was released to the public after different briefings with academic departments stipulating that some subjects, such as nursing, music and modern languages could be merged.
Professor Wendy Larner, the University’s Vice-Chancellor said, "It is no longer an option to continue as they are".
She previously stated that the University would develop new ways of producing income and look at international partnerships like the one recently announced in Astana, Kazakhstan.
The Cardiff University and College Union described the cuts as "cruel and unnecessary".
The University had previously stated that they must take action to address a £30m deficit in their budget, with pressure from the lack of international student numbers affecting the sector nationwide.
Dr Joey Whitfield, a member of Cardiff UCU, stated that "they were shocked by the unnecessary cuts".
The Welsh government has increased tuition fees to £9,535 for degrees starting in September 2025, making it the same price as English Universities.
Cardiff University is the largest university in Wales with 32,725 students in 2024.
Other universities across the UK have been forced to cut staff to address their budgets, but there have been signals that increasing fees won’t resolve the financial problems universities face.