Demie Mainieri
Biographical details
Born(1928-10-21)October 21, 1928
DiedMarch 13, 2019(2019-03-13) (aged 90)
Accomplishments and honors
NJCAA Hall of Fame
National College Baseball Hall of Fame
College Baseball Hall of Fame
Inducted in 2014

Demie J. Mainieri (October 21, 1928 – March 13, 2019) was an American college baseball head coach.


Mainieri was from New Jersey. He graduated from West Virginia University in 1963 with a Ph.D. in education and administration.[1] He served as an assistant coach in college football at Columbia University under head coach Lou Little.[2]

Mainieri served as the head coach of the college baseball team at Miami Dade Community College for thirty years, starting in 1960.[3][4] He was named athletic director in 1963.[2] Mainieri became the first junior college coach to win 1,000 career games. Mainieri won 1,012 games at Miami-Dade.[3]

In 1978, Mainieri skippered the Wareham Gatemen of the Cape Cod Baseball League.[5]

Mainieri's son, Paul Mainieri, was the head coach for the LSU Tigers baseball team from 2007 until his retirement at the conclusion of the 2021 season.[3]

Mainieri was inducted into the NJCAA Hall of Fame in 1983.[6] In 2014, Mainieri was elected into the National College Baseball Hall of Fame.[3]

On March 13, 2019, Mainieri died at the age of 90.[7]


  1. ^ [1][dead link]
  2. ^ a b [2][dead link]
  3. ^ a b c d "Archived copy". Archived from the original on July 28, 2014. Retrieved July 28, 2014.((cite web)): CS1 maint: archived copy as title (link)
  4. ^ "MDC News". Retrieved March 13, 2019.
  5. ^ "Cape Cod Baseball League opens season". Yarmouth Register. Yarmouth, MA. June 15, 1978. pp. SA13.
  6. ^ [3][dead link]
  7. ^ "Demie Mainieri, Paul Mainieri's father and hall of fame coach, dies at 90".