Abstract. Disjunctive logic programs are a powerful tool in knowledge representation and commonsense reasoning. The recent development of an efficient disjunctive logic programming engine, named DLV, allows to exploit disjunctive logic programs for solving complex problems. However, disjunctive logic programming systems are currently missing any interface supporting the integration between commonly used software development languages (like Java or C++) and disjunctive logic programs. This paper focuses on the DLV Wrapper, a library, actually implemented in Java, that “wraps” the DLV system inside an external application, allowing to embed disjunctive logic programs inside Object-Oriented source code.