Abstract: A system and method for supporting self-expiring data content. In accordance with an embodiment, a data record can be associated with a future expiration date and/or time, which can be specified as either an absolute date or time, or a relative date or time. When the expiration date and/or time is reached, the data record and its associated data are automatically deleted from the system. Depending on the particular implementation, the deletion can be automatic or provide some form of confirmation or acknowledgement. In accordance with an embodiment, a user inputting the data can control the record's expiration date, such that data is only retained in the system for as long as the user reasonably expects the data to be useful to them. For example, in a mobile phone contacts implementation, a user can attach an expiration date to a particular contacts data record, and that record will only remain in their mobile phone for that desired period of time.