- Kachar, Lav Kumar
- Kalaiarasan, V.
- Kannan, P.
- Kannan, R.
- Kannan, Ragupathy, Prof.
- Kannan, V.
- Kanniah, P.
- Kapoor, Vena
- Karthikeyan, S.
- Khachar, Lavkumar
- Khacher, Lavkumar
- Krishna, K. V. S.
- Krishna, KVS
- Krishnamurthi, C. R., Dr.
- Krishnamurthy, V.
- Krishnamurthy, V.,Dr.
- Krishnan, M.
- Krishnan, Riki
- Krishnaswamy, Anand
- Kubra Bano, Dr.
- Kumar, K.
- Kumar, K. Ramesh
- Kumar, R. Govind
Madras Naturalists' Society
