Ratna Omidvar CM OOnt (born November 5, 1949) is a Canadian politician and academic, who was named to the Senate of Canada to represent Ontario on March 18, 2016.

[5][6][7] She became executive director of the Maytree Foundation, a charitable organization to combat poverty in Canada, before departing in 2014 to found the Global Diversity Exchange at the Ted Rogers School of Management, Toronto Metropolitan University[3] where she was a distinguished visiting professor.

[1] In 2016, Omidvar's exchange with psychologist Jordan Peterson during a Senate Committee on Legal and Constitutional Affairs hearing on Bill C-16 received significant attention, where Peterson defended his position against the bill's provisions requiring the use of pronouns for persons based on their identified gender if different from their biological sex.

[8] In October 2018, Omidvar introduced a motion to strip Aung San Suu Kyi of her honorary Canadian citizenship over her government's actions in the Rohingya conflict.

In 2014, Omidvar received the Cross of the Order of Merit of the Federal Republic of Germany in recognition of her contribution to the advancement of German-Canadian relations.