Yes, you can use Jira for product roadmap. You can create a product roadmap by creating a new Jira issue and assigning it to the product category. Then, you can add information about the product, such as the product name, description, target market, and release date. You can also add other information, such as the product's features, benefits, and drawbacks. Finally, you can add a link to the product roadmap in the Roadmap section of the Jira issue.