Automatic conversation topic detection, generation and storage are provided. Electronic conversation threads and associated metadata for a variety of types of electronic communications are retrieved. Topic properties such as keywords or terms and information about the conversation threads are extracted from the conversation threads and metadata. Extracted thread terms and properties are used for identification of a topic title associated with the conversation threads and metadata. An identified topic title is compared with previously identified topics to determine whether the identified topic is new or whether the identified topic is the same as a previously identified topic. A short and useful topic title is generated in order to allow subsequent users to know what the conversation thread is about at a glance. A user interface component may allow users to accept, reject or modify a generated topic title.