M. O. P. Iyengar

Mandayam Osuri Parthasarathy Iyengar
M.O.P. Iyengar in 1925, first row, third from left
Born(1886-12-15)15 December 1886
Died10 December 1963(1963-12-10) (aged 76)
Alma materPresidency College, Chennai
Queen Mary College, London
Known forPioneering algae research in India
Studies on Volvocales
First President of the Phycological Society of India
Scientific career
FieldsPhycology, Botany
InstitutionsPresidency College, Chennai
Madras University
Doctoral advisorFelix Eugen Fritsch
Author abbrev. (botany)Iyengar

Mandayam Osuri Parthasarathy Iyengar (15 December 1886 – 10 December 1963) was a prominent Indian botanist and phycologist who researched the structure, cytology, reproduction and taxonomy of algae. He is known as the "father of Indian phycology" or "father of algology in India". He was the first President of Phycological Society of India. He primarily studied the Volvocales. He was the brother of M. O. T. Iyengar.