The school honours the headmistresses who led Carmel Convent High School, K.M. over the years and built the foundation it stands on today.
| Period | Headmistress |
|---|---|
| 1962 – 1970 | Sr. Agnella |
| 1970 – 1976 | Mother Carmela |
| 1976 – 1984 | Sr. Mona |
| 1984 – 1987 | Sr. Corona |
| 1987 – 1992 | Sr. Angelita |
| 1992 – 1995 | Sr. Jesuita |
| 1995 – 1999 | Sr. Conradine |
| 1999 – 2001 | Sr. Crispina |
| 2001 – 2006 | Sr. Rose |
| 2006 – 2007 | Mrs. Cisily K.P. (In-charge) |
| 2007 – 2012 | Sr. Alma |
| 2012 – 2018 | Sr. Bernie |
| 2018 – 2019 | Mrs. Pushpa A. (In-charge) |
| 2019 – 2023 | Sr. Vanessa |
| 2023 – Present | Sr. Mary Pauline |