Sixty-two well-dated Pliocene pollen locations constitute this database covering six provinces (Catalonia, Roussillon, Languedoc, Provence, Southeastern Alps, and Liguria). They constitute the basis of a paper invited for a special issue of the journal Global and Planetary Change within the frame of the ‘PlioMIP3 Project’ (‘Advances in Paleoclimate Modeling of the Pliocene climate’, edited by Zhang Z., Li X., Chan W.-L. and Stepanek C.). The paper should be published by the end of 2025, coinciding with the date of free access to these pollen data. Preliminary reference: Suc, J.-P., Fauquette, S., Cheddadi, R., Tan, N., Ramstein, G., Li, L., Jiménez-Moreno, G., Popescu, S.-M., Zheng, Z. Pliocene contrasted climatic conditions in space and along time: an unique pollen dataset from the NW Mediterranean Region comparable with model. The peculiarity of these pollen data consists in the botanical identification of pollen grains and detailed pollen counts. The data are distributed in three sheets of an excel file (NWMPPD) accompanied by this introductive text, a location map, a table of locations (numbers and names of locations, respective latitude and longitude, estimated age, basis of dating, author of pollen analysis, concerned references). The quoted papers can also be provided on request.