Hello @Corissa Bowman ,
Welcome to the Atlassian Community!
The below documentation page for Jira Server lists different possibilities to import from TFS into Jira:
The information in above page apply to Cloud as well and, as you can read in there, if Importing data from CSV does not fit your needs, on the Atlassian Marketplace you can find different apps/add-ons to integrate and/or import data from TFS into Jira Cloud including (but not limited to):
For more details and/or alternatives, you may also want to review the below links :
I hope this helps.
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