Embodiments of the present invention provide a method, system and computer program product for dynamic, granular messaging persistence in a messaging system. In an embodiment of the invention, a method for dynamic, granular messaging persistence in a messaging system is provided. The method includes monitoring operational performance of a message broker and receiving a message for queuing in a message queue of the message broker. The method also includes parsing the message to extract different fields and corresponding priorities and selectively storing in fixed storage, data for corresponding ones of the different fields based upon consideration of corresponding ones of the priorities and the monitored operational performance. Finally, the method includes queuing the message in the message queue.