* Mike Huckabee: Former Governor of Arkansas and Republican presidential candidate. He's probably the most nationally-recognized alum.
* John Grisham: While he didn't graduate, the famed author attended the University of Arkansas before transferring to Mississippi State. His connection is often mentioned.
* Various athletes: The University of Arkansas has a strong athletic program, particularly in football and basketball. While many athletes go on to professional careers, achieving fame isn't guaranteed, so listing specific names would require specifying a sport and era and likely wouldn't yield widely known names to the general public.
It's important to note that fame is subjective. Many successful individuals in various fields have graduated from the University of Arkansas, but their recognition might be limited to specific professions or regions.