Unfinished Business may refer to:
- Unfinished Business (The Thing): A The Thing fanfic.
- Unfinished Business (gelefant): A Scooby-Doo fanfic.
- Unfinished Business (kitsunealyc): A The Scum Villain's Self-Saving System: Ren Zha Fanpai Zijiu Xitong fanfic.