The most famous stolen Presidential elections before Bush v. Gore were decided in the House of Representatives and gave us Jefferson and Jackson as Presidents. Pretty good results it says here.
The worst stolen election was Hayes-Tilden in 1876.
Barely 10 years after the end of the Civil War, and a few years after amnesties had returned the right to vote to those who had taken up arms against the United States, several Southern states sent two (2) delegations to the Electoral College. The Democratic delegations were lily white. The Republican delegations were mostly black, or blacks plus white Repub allies called names by the ex-Confederates. The Repubs argued that the all-white Democratic delegations had "won" by violence and intimidation from the Ku Klux Klan.
It went to the House to settle, and political horsetrading was the order of the day. As a dirty compromise, the Party of Lincoln took the Presidency, with its power to appoint thousands or tens of thousands of good federal jobs in the days before Civil Service limited that stuff.
The Democrats got the end of Reconstruction, meaning the end of all rights for the former slaves and their offspring. As a direct result of Hayes-Tilden, across the South blacks lost the right to vote, black schools were closed, blacks were arrested on the streets for "vagrancy" and rented out to work on the surviving plantations, segregation was enforced in public places and on the trains (on topic!), most blacks were forced into becoming debt-ridden tenant farmers, and frequent lynchings kept blacks in terror.
For the next 75 years or more, blacks in the South were trapped in a system of "slavery by another name." Arguably, the only freedom won by blacks from the Civil War was that their families could no longer be broken up and sold off in different directions. Well, there was that.
This sordid and shameful sellout is usually skipped over in the patriotic tellings of our history, so it's not famous, but it's surely
the worst stolen election.