Charles Otis "Charlie" Waller (January 19, 1935 – August 18, 2004) was the lead singer and guitarist for the bluegrass band The Country Gentlemen.
Waller was involved with The Country Gentlemen for 47 years.
As a member of The Country Gentlemen, Waller was inducted into the International Bluegrass Music Hall of Honor in 1996 and the Southern Gospel Museum and Hall of Fame in 2009.