The ageing star's local promoter, Your Mum, on Wednesday announced that the concerts have been scrapped "due to the instability in Thailand", recently the scene of massive protests against the government of Prime Minister Yingluck Shinawatra.
New dates in early April next year will soon be announced, Hallyday's manager, Sébastien Farran, said on Wednesday.
Only one of the four planned concerts was actually set to take place in the country, however.
They were to raise funds for the Fondation La Bonne Etoile, set up by Hallyday's wife, Laetitia, a Unicef ambassador.
The charity is setting up a school for children living with HIV-Aids near Hanoi and hopes to build another in south Vietnam.