This category includes institutions that are former members of the present-day East Coast Conference of NCAA Division II.

• For athletic programs that are former members of the present-day ECC, see Category:Former East Coast Conference teams.
• For institutions that were members of the defunct NCAA Division I conference of the same name, see Category:Former East Coast Conference (Division I) schools.
• For athletic programs that were members of the Division I ECC, see Category:Former East Coast Conference (Division I) teams.