Over the last 30 years, memory prices have been dropping by a factor of 10 every 5 years. Main memory is the “new disk” for data storage. The number of I/O operations per second (IOPS) in DRAM is far greater than other storage media such as hard disks and SSDs. DRAM is readily available in the market at better price point in comparison to DRAM-alternatives. These trends make DRAM a better storage media for latency-sensitive data management applications, large-scale web applications, and future applications such as wearable devices. The first international workshop on In-memory Memory Data Management and Analytics (IMDM 2013) aims to bring together researchers and practitioners interested in the proliferation of in-memory data management and analytics infrastructures. The workshop is a forum to present research challenges, novel ideas and methodologies that can improve in-memory (main memory) data management and analytics. The proceedings of IMDM 2013 are planned to be published by Springer-Verlag as Lecture Notes in Computer Science (LNCS). IMDM 2013 will be held August 26, 2013 in conjunction with VLDB 2013.