There are connectors for Tableau, but I don't rate them that highly as they rely on you understanding Jira. Dataplane and EazyBI as mentioned by Tarun and Ash, do understand Jira, and are generally the best option.
bi4jira lets you analyze Jira data into any BI tool. For details please follow the link:
https://marketplace.atlassian.com/apps/1220232/bi4jira?hosting=cloud&tab=overview
EazyBI for JIRA is a great choice. Great technical support. Only caveat is that it helps to be smart to use it.