Kilkenny City was an Irish borough constituency in the House of Commons of the United Kingdom of Great Britain and Ireland, returning one Member of Parliament (MP).
It was an original constituency represented in Parliament when the Union of Great Britain and Ireland took effect on 1 January 1801, and remained in existence until its abolition at the 1918 general election.
Sullivan resigned, causing a by-election.
O'Connell was also elected for Limerick City and opted to sit there, causing a by-election.
Whitworth's resignation caused a by-election.