Maulin (Irish: Málainn, meaning 'High/sloping ground'), at 570 metres (1,870 ft), is the 272nd–highest peak in Ireland on the Arderin scale, however, being below 600 m it does not rank on the Vandeleur-Lynam or Hewitt scales. Maulin is in the far northeastern section of the Wicklow Mountains, at the mouth of Glensoulan Valley; Powerscourt Waterfall lies at its base.

Maulin is accessed from the trails through Crone Woods, a Sitka spruce plantation on its northern slopes; Maulin is also accessible just off the main Wicklow Way. Maulin is often climbed as part of a "loop route" called the Circuit of Glensoulan which starts at Crone Woods car-park, and complete a 16-kilometre loop of Maulin, Tonduff 642 metres (2,106 ft), War Hill 686 metres (2,251 ft), and Djouce 725 metres (2,379 ft), and then returning to Crone Woods car-park.

The Knockree An Óige youth hostel is located at the base of Maulin in Lackandarragh near the village of Enniskerry.

• Fairbairn, Helen (2014). Dublin & Wicklow: A Walking Guide. Collins Press. ISBN 978-1848892019.
• MountainViews Online Database (Simon Stewart) (2013). A Guide to Ireland's Mountain Summits: The Vandeleur-Lynams & the Arderins. Collins Books. ISBN 978-1-84889-164-7.
• Dillion, Paddy (1993). The Mountains of Ireland: A Guide to Walking the Summits. Cicerone. ISBN 978-1852841102.

• Wicklow Way
• Wicklow Mountains
• Lists of mountains in Ireland
• List of mountains of the British Isles by height
• List of Hewitt mountains in England, Wales and Ireland

• MountainViews: The Irish Mountain Website, Maulin
• MountainViews: Irish Online Mountain Database
• The Database of British and Irish Hills , the largest database of British Isles mountains ("DoBIH")
• Hill Bagging UK & Ireland, the searchable interface for the DoBIH