A large collection of carved and moulded stones has been gathered from the various buildings and monastic sites at Glendalough. Most of these were stored in St Kevin's 'Kitchen' until 1987, when they were moved to the new Visitor Centre. A catalogue of the stones appears in the Official Guide, first prepared by Dr Robert Cochrane in 1911–12 and revised on a number of occasions by Harold Leask. The numbering system of the Official Guide is followed here. Some of the grave slabs and crosses may belong to the Romanesque period, but only those fragments with carving that can definitely be attributed to this period are listed below. One of the pieces not included below (number 28), probably of 9th–10thc date, has part of a human figure. A number of additional Romanesque stones were listed by Patrick Healy in an unpublished study commissioned (around 1971) by the Office of Public Works and entitled Supplementary Survey of the Ancient Monuments at Glendalough, Co. Wicklow (98–102).

The stones gathered in the Visitor Centre deserve further study. It is disappointing that no provenance can be found for the ornate string course (numbers 42-4). A decorated string course, interspersed with grotesque heads, can be seen at the top of the round tower at Devenish (Fermanagh), but there is no record of similar carving on the round tower at Glendalough. Several of the other stones relate to windows with ornamented triangular gables. Two fragments of chevron are particularly interesting: number 47 with its foliate infill and number 52 where the chevron itself takes the form of an animal. These appear to be unique in Ireland.