Discolocrinus thieli is a species of sea lily, a crinoid in the family Bathycrinidae. It is native to the eastern Pacific Ocean. It was described by A. N. Mironov.[1] It is named in honor of deep sea ecologist Hjalmar Thiel.
Discolocrinus thieli is described from fragments retrieved by the RV Sonne in 1992. It has a low, funnel shaped calyx. None of the arms were complete with the longest fragment being . The overall length of the fragments is . It is attached to the substrate by an expanded terminal columnal with two short, flattened rootlets to reinforce the attachment.
D. thieli is found in south-by-southeast of the Galapagos Islands, and west of Paita, Peru at a depth of .