| Isaac Butts | |
| Team: | Fighting Eagles Nagoya |
| Number: | 5 |
| Position: | Center |
| Height Ft: | 6 |
| Height In: | 10 |
| Weight Lb: | 295 |
| Birth Date: | 28 May 1989 |
| Nationality: | American |
| High School: | Georgia Military College Prep (Milledgeville, Georgia) |
| College: | Appalachian State (2007–2012) |
| Draft Year: | 2012 |
| Career Start: | 2012 |
| Years1: | – |
| Team1: | Moncton Miracles |
| Years2: | 2013–2014 |
| Team2: | SC Rasta Vechta |
| Years3: | 2014–2015 |
| Team3: | Hyogo Storks |
| Years4: | 2015–2019 |
| Team4: | Aisin Seahorses |
| Years5: | 2020 |
| Team5: | Toyama Grouses |
| Years6: | 2020–2024 |
| Team6: | Koshigaya Alphas |
| Years7: | 2024–present |
| Team7: | Fighting Eagles Nagoya |
| Highlights: |
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Isaac Butts IV (born May 28, 1989) is an American professional basketball player for Fighting Eagles Nagoya of the Japanese B-League. Butts played high school basketball at Georgia Military College Prep School until 2007. He averaged 26 points per game and 17 rebounds per game during his senior year. Upon high school graduation, he received a scholarship to attend Appalachian State University. Once he completed his collegiate career at Appalachian State, he was invited to participate in the Orlando Magic Summer League.
|-| align="left" | 2012–13| align="left" | Moncton| 36|| 20|| 29.1|| .603|| .000|| .549|| 11.1|| 1.44|| 0.36|| 1.61|| 14.97|-| align="left" | 2013–14| align="left" | SC Rasta Vechta| 32|| 8|| 14.2|| .625|| .000|| .623|| 4.31|| 0.34|| 0.12|| 0.62|| 5.5|-| align="left" | 2014–15| align="left" | Nishinomyia| 52|| 50|| 35.4|| .649|| .000|| .578|| 15.2|| 2.73|| 0.58|| 1.27|| 17.06|-| align="left" | 2015–16| align="left" | Mikawa| 62|| 44|| 25.2|| .679|| .000|| .549|| 10.55|| 0.77|| 0.35|| 1.06|| 9.89|-| align="left" | 2016–17| align="left" | Mikawa| 64|| 53|| 26.8|| .658|| .000|| .588|| 11.53|| 0.95|| 0.27|| 0.67|| 9.22|-| align="left" | 2017–18| align="left" | Mikawa| 64|| 52|| 27.5|| .655|| .000|| .665|| 10.53|| 1.38|| 0.55|| 0.73|| 9.86|-| align="left" | 2018–19| align="left" | Mikawa| 45 ||39 || 31.9|| .592|| .000|| .626 || 12.11|| 2.13|| 0.69|| 0.56|| 10.09|-| align="left" | 2019–20| align="left" | Toyama| 12|| 12|| 38.1|| .712|| .000|| .673|| 13.58|| 1.92|| 0.5|| 1.08|| 16.25|-|}