| Dan Estes | |
| Birth Date: | 1 January 1888 |
| Birth Place: | Carrollton, Arkansas, U.S. |
| Death Place: | near Mayflower, Arkansas, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1908–1913 |
| Player Team2: | Arkansas |
| Coach Sport1: | Football |
| Coach Years2: | 1915–1916 |
| Coach Team2: | Arkansas State Normal |
| Coach Years3: | 1917 |
| Coach Team3: | Fourth District Agricultural |
| Coach Years4: | 1919–1932 |
| Coach Team4: | Arkansas State Normal/Teachers |
| Coach Sport5: | Basketball |
| Coach Years6: | 1920–1929 |
| Coach Team6: | Arkansas State Normal/Teachers |
| Coach Sport7: | Baseball |
| Coach Years8: | 1916–1917 |
| Coach Team8: | Arkansas State Normal |
| Coach Years9: | 1919–1933 |
| Coach Team9: | Arkansas State Normal/Teachers |
| Coach Years10: | 1935 |
| Coach Team10: | Arkansas State Teachers |
| Coach Years11: | 1937 |
| Coach Team11: | Arkansas State Teachers |
| Overall Record: | 48–65–11 (football) |
Guy Dan "Big Dan" Estes (January 1, 1888 – November 13, 1944) was an American football, basketball, and baseball coach. He served as the head football coach at Arkansas State Normal School—renamed Arkansas State Teachers College in 1925 and now known as the University of Central Arkansas—from 1915 to 1916 and again from 1919 to 1932. He also coached the school's basketball program from 1920 to 1929. Estes also served as coach of the University of Arkansas at Monticello football team in 1917.
Estes was an alumnus of the University of Arkansas, where he played football for coach Hugo Bezdek, winning four letters during his tenure.[1] [2] He captained the 1911 team.[3]
He died of a heart attack while duck hunting in 1944.[4]