The Irish National Sailing School is a privately owned public sailing facility in Dun Laoghaire, South County Dublin. Originally set up as the Dun Laoghaire Sailing School by Alistair Rumball in 1972, the school was located above the old Viking Marine premises, which the Rumball brothers ran until 1999 when they sold that business on.
In the early 1990s Alistair Rumball acquired the building which housed the old Nautical College on Dun Laoghaire's West Pier and set up the new base of the Irish National Sailing School there. The business went up and up and today represents Ireland's foremost sailing school, running a children's sailing camp throughout the summer, at halloween and at Easter. Adults courses are run from February to November. Transition year courses are run throughout the year with many schools from Dublin participating in the programme.