Osinbajo also congratulated President Muhammadu Buhari and leaders of the APC for a successful special convention.
The VP said for many decades, Tinubu has shown passion, patriotism, courage and determination in the cause of nation-building.
Osinbajo in a statement on Thursday noted that the APC leader's sterling contributions to Nigeria's democracy and its progress stand him out.
“His wealth of experience will certainly be critical in our party's continued efforts to attain a more secure and prosperous Nigeria”, he said.
Osinajo urged APC members to unite and support Tinubu to ensure victory for our party in the 2023 elections.
“We must remain strong and united in pursuing our collective vision as a party towards building a country that can provide a decent life and livelihoods for all our people”, his statement added.