Keep your powder dry!
No, but he was indicted for treason and would have been tried, and no doubt convicted, if not for the passage of the 14th Amendment in 1868. Chief Justice Chase viewed the penalties imposed on the leaders of the rebellion in that amendment as meaning any future trial and punishment for crimes connected with the rebellion as a violation of the defendants 5th Amendment rights. Shortly afterwards the charges were dropped.
But Jeff Davis was NEVER put on trial for treason.
There was a very contentious meeting between Lincoln, Secretary of War Stanton and others, where Lincoln flatly refused to even consider trials for Davis or anyone else. That night Lincoln was assasinated.
Based on the way Secretary of War Stanton was able to railroad the assasination conspirators, it is likely he could have arranged long drops on short ropes for Davis, Lee or anyone he chose. Lincoln's strong opposition to such was probably a factor in why he didn't pursue such trials more strongly.
Walt