Unfortunately you cannot recover the deleted issue @Andrew Uphoff . In future consider to just resolve or close this issue instead. Atlassian support might be able to help you, but it is time consuming for them to do a point it time recovery to recover a single issue, it possible that there might be more data loss by doing so.
For a small handful of issues, the easiest option is probably just to find whatever emails had been sent about issue changes and manually create a new issue as a replacement, with an explanation of why it's different to the old one.
I'd also remove all the "delete issue" permissions from all the schemes, just to prevent the accident again (it'll force you to check if you actually do want to delete)
Atlassian recently introduced the trash feature for projects. It will keep deleted project and its issues in trash for 60 days. So that you can recover a deleted project in 60 days. However, if you delete only the issues, the deleted issues are lost forever. There is an open ticket for restore functionality, you can vote for it. https://jira.atlassian.com/browse/JRACLOUD-30430
For that specific need, we built Restore Deleted Issues app. It keeps track of when and who deleted the issues. You can view and restore summary, description and comments except attachments.
We often have questions from folks using Jira Service Management about the benefits to using Premium. Check out this video to learn how you can unlock even more value in our Premium plan. &nb...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events