The 2002 United States Senate election in Louisiana was held on November 5, 2002. Incumbent Democratic U.S. Senator Mary Landrieu won re-election to a second term.
During the run-off, Landrieu was out-spent three-to-one by Republican contender Suzanne Haik Terrell, the Louisiana Elections Commissioner. Terrell also had prominent Republicans including President George W. Bush and Vice President Dick Cheney visit Louisiana to campaign on her behalf. Republicans, confident of victory having gained seats in the elections to the House of Representatives and to the Senate, solidifying control of the former and taking control of the latter, publicly called the election "Operation Icing on the Cake". Some Democrats responded by calling their efforts "Operation Wipe that Smirk off of Bush's Face" and dubbed Landrieu's subsequent run-off victory, "Operation Pie in the Face".