This third work in the series of reference volumes cataloging the Arabic material at the Royal Library, Copenhagen, describes 356 manuscripts including the latest acquisitions. 47 manuscripts are here described for the first time, whereas 309 manuscripts have been described in a Latin catalogue printed in 1851. In the new catalogue, the manuscripts are described in English and with much more detailed information than has previously been available. The acquisition history of the collection reaches from the 17th century to the present day and the manuscripts reflect the interests of both scholars and book collectors. The oldest manuscripts are Qur'an fragments written on parchment in Kufi script, dating from the 9th century and the most recent manuscript is a collection of Sufi texts copied in 1905. This work is part of the "Series Catalogue of Oriental Manuscripts, Xylographs, etc. in Danish Collections" (COMDC) as volume 5.3. Two earlier volumes are also available (as a set) from Asian Studies Book Services.