The LSSTC Data Science Fellowship program is a two year training program, designed to teach skills required for LSST (Large Synoptic Survey Telescope) science that are not easily addressed by current astrophysics programs. The program consists of three, one-week schools per year over a two year period. The program is funded by LSSTC, NSF Cybertraining Grant #1829740, the Brinson Foundation, and the Moore Foundation.