No, UNESCO did not. According to UNESCO Record of General Conference, 24th session, Paris, 20 October to 20 November 1987, v. 1: Resolutions; 1988, (*link #1 below.) The record showed: “16. read more
And in the spirit of the question, yes, UNESCO did honor Ho Chi Minh by 1) Recommending to Member States that they join in the commemoration of the centenary of the birth of President Ho Chi Minh; and 2) Requesting the Director–General of Unesco to take appropriate steps to celebrate the centenary of the birth of President Ho Chi Minh. read more