If you mean "delete it from my Jira", then log in as a site administrator, go to the user section and remove the user from all groups etc and then delete them.
This will not delete their Atlassian account. That has to be done by them raising a request with support.atlassian.com, after transferring any billing or ownership of systems over to whomever should take them on.
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs