Systems and methods of mobile database management and sharing are provided which include at least one mobile database and a first electronic circuit in communication with the mobile database. The system segments the mobile database into a plurality of database segments and indexes the plurality of database segments. The system sends one or more of the plurality of database segments to a second electronic circuit over a private secured communication protocol. One or both of the first and second electronic circuit may be housed within one or more mobile devices. Disclosed systems and methods include processing a database sharing request received from at least one mobile device wherein the database sharing request requests sharing of one or more of the plurality of database segments. A mobile device containing a database management and sharing system is also provided which includes a shared mobile database and one or more proxy entities related to the shared mobile database. At least some of the plurality of database segments are sent via the one or more proxy entities to one or more separate mobile devices and stored in the mobile device and the one or more separate mobile devices.