List of Mainstream Top 40 number-one hits of 1998 (U.S.)
This list of number-one hits on the Mainstream Top 40 charts in 1998. They were published by the U.S. magazine Billboard. This year there were nine leaders.
- Chumbawamba - Tubthumping 9 weeks (29 November 1997 - 30 January 1998)
- 2 weeks ( July 11 to July 24 )
- 4 weeks ( July 25 to August 21 )
- 8 weeks ( August 22 to October 16 )
- 7 weeks ( 17 October to 4 December )
- 8 weeks ( December 5, 1998 - January 29, 1999)