The 1998 United States Senate election in Alaska was held November 3, 1998. Incumbent Republican United States Senator Frank Murkowski sought re-election to a fourth term in the United States Senate. Murkowski easily won re-election against Democratic nominee Joseph Sonneman, a perennial candidate, earning nearly 75% of the vote.
This is the last time any one won this seat with a majority of the vote in the first round. As of 2023, this is the last time a male or a man was elected to the United States Senate from Alaska for the Class 3 Senate seat.