Marian College is a Marist Catholic secondary school in Ballsbridge, Dublin, Ireland that was established in 1954.

In the early 1950s, the then Archbishop of Dublin, Dr John Charles McQuaid, had invited the Marist Brothers to open a school in the Sandymount-Ballsbridge area.

[citation needed] For the first 34 years, the College was run by a succession of Marist Brothers.

The college fields teams in both the JCT/SCT competitions and reached the JCT final of the Cup Shield in 2008.

Water-polo is the school's most successful sport, the college having won numerous Leinster titles over the past 10 years.