The RIBF Users Meeting 2015 will be held from September 10 (Thu.) to 11 (Fri.) 2015 at RIKEN RI Beam Factory (RIBF). This RIBF Users Meeting is organized by RIBF UEC (Users Executive Committee) and RIKEN Nishina Center. After the last Users Meeting at June 2013, many exciting experiments were conducted. Recently, the commissioning of the Rare-RI Ring was conducted. This meeting provides a good opportunity to know recent activities and preliminary results at RIBF. We will also have a discussion time about the Post-RIBF project considered in RIKEN Nishina Center.