Neo4j has recently added support for two new query languages -- Gremlin and Cypher. Gremlin is a domain specific scripting/traversal language written in Groovy,

Neo4j has recently added support for two new query languages -- Gremlin and Cypher. Gremlin is a domain specific scripting/traversal language written in Groovy, and you can include a Gremlin script in whatever language you're writing code in just like you can include an SQL script in your code. Cypher is brand new and experimental.