List of UK R&B Singles Chart number ones of 2009

The UK R&B Chart is a weekly chart that ranks the 40 biggest-selling singles and albums that are classified in the R&B genre in the United Kingdom. The chart is compiled by the Official Charts Company, and is based on both physical and digital sales. This is a list of The Official UK Charts Company R&B hits of 2009.

Number ones

 * Notes
 * – Was simultaneously number-one that week on the UK Singles Chart

Year-end statistics

 * Best selling number one R&B single – "I Gotta Feeling" by Black Eyed Peas, sales of 848,000
 * Best selling number one R&B artist – Black Eyed Peas, combined sales of 2,033,000
 * Most weeks at number one (single, consecutive) – "Boom Boom Pow" by Black Eyed Peas, 7 weeks
 * Most weeks at number one (single, non-consecutive) "I Gotta Feeling" by Black Eyed Peas, 4 weeks
 * Most weeks at number one (artist, consecutive) – Black Eyed Peas, 7 weeks
 * Most weeks at number one (artist, non-consecutive) – Black Eyed Peas, 14 weeks