Rathcoran is a passage grave and hillfort and National Monument located atop Baltinglass Hill, County Wicklow, Ireland.

Carbonised hazelnuts, wheat grains and a saddle quern point to the extent of local climate change: in Neolithic Ireland, the climate was drier and warmer, County Wicklow's glens were densely wooded, and farmers could grow crops at altitudes above 300 m (980 ft).

Rathcoran, atop Baltinglass Hill is dated to 1000 BC or slightly earlier: during the Bronze Age.

"[3] The passage tomb survives as a multi-period kerbed cairn with a diameter of 27 m (89 ft), underneath which are five structures: The finds from the site include the cremated bones of at least three adults and one child, flint scrapers, Carrowkeel pottery and bone pins.

[4][5] The Rathcoran hillfort, a bivallate ringfort, is at the top of Baltinglass Hill, and surrounds the cairn.