Knockmealdown (Irish: Cnoc Mhaoldomhnaigh, meaning 'hill of Maoldomhnach') is the highest peak of the Knockmealdown Range of mountains, located on the border between counties Tipperary and Waterford.

The original Irish name is widely believed to be Cnoc Mhaoldomhnaigh, meaning "Muldowneys' hill".

[2] It has also been suggested that it is derived from Cnoc Maol Donn, meaning "bald brown hill".

[2][3] The peak is easily accessed from the west, via the layby overlooking Bay Lough on the Vee Gap.

It may also be climbed by following the Glannandaree stream from the carpark at the point where the R668 and R669 roads meet.