Abstract: Techniques and configurations for implementing data obfuscation for Representational State Transfer (RESTful) web service communications such as those communicated using an Open Data (OData) protocol are described. In one example embodiment, an obfuscation service includes an OData client, an OData server, and an OData obfuscation data server, the obfuscation service operating to intercept and process OData web service requests being transmitted from requesting clients to backend enterprise data services. The obfuscation service may include or integrate with an obfuscation engine, including a context engine, a rules engine, and a hierarchical mapping engine to determine rules for data obfuscation based on determined context and hierarchical mappings. The obfuscation service may apply the determined rules to provide specific access control and data obfuscation results of data retrieved from the backend enterprise services.