Abstract: Embodiments of the present invention provide for a method, system and computer program product for fast heterogeneous multi-data source search and analytics. In an embodiment of the invention, a method includes receiving a specification of multiple different data sources in a search and analytics engine, establishing communicative links between the engine and the data sources, and identifying a data source type and corresponding data fields storing respective data for each data source. The method further includes specifying a multi-hop graph traversal query implicating data across the different data sources, decomposing the query into constituent components and mapping each of the constituent components to each of the data sources based upon the corresponding data fields. The method even further includes formulating a specific query for each of the data sources, transmitting each query to each data source and populating in a knowledge graph each result set received for each query.