In this study, the samples were collected from 28 stations at depth of 0-65 meters both SCUBA diving and using dredge, grap, and beam trawl. This is first systematical study on sponge fauna in the the Marmara Sea. As a result 19 species were found from the Marmara Sea littoral zone Four of these taxons are new records for the Turkish sponge fauna (C. penicillus, D. plicata, M. strepsitoxa and P. pulitzeri).