  The paper gives two approaches to write explicit presentations for the class
of Dehn quandles using presentations of their underlying groups. The first
approach gives finite presentations for Dehn quandles of a class of Garside
groups and Gaussian groups. The second approach is for general Dehn quandles
when the centralisers of generators of their underlying groups are known.
Several examples including Dehn quandles of spherical Artin groups, surface
groups and mapping class groups of orientable surfaces are given to illustrate
the results.
