No, Atticus Finch did not go to jail in Harper Lee's novel "To Kill a Mockingbird."
Atticus was a lawyer who defended Tom Robinson, a Black man falsely accused of raping a white woman. Despite overwhelming evidence of Tom's innocence, the jury found him guilty due to racial prejudice prevalent in the South during the 1930s. Atticus faced threats and social ostracization for representing Tom, but he remained steadfast in his commitment to justice and upholding the law.
While Atticus faced hostility and prejudice, he never faced any legal repercussions or imprisonment for defending Tom Robinson. He remained a respected member of the community, upholding his values and principles despite the challenges he faced.