List of number-one R&B singles of 2004 (U.S.)
      These are the Billboard R&B singles chart number-one singles of 2004.
Chart history
| Issue Date | Song | Artist | 
| January 3 | "You Don't Know My Name" | Alicia Keys | 
| January 10 | "You Don't Know My Name" | Alicia Keys | 
| January 17 | "You Don't Know My Name" | Alicia Keys | 
| January 24 | "You Don't Know My Name" | Alicia Keys | 
| January 31 | "You Don't Know My Name" | Alicia Keys | 
| February 7 | "You Don't Know My Name" | Alicia Keys | 
| February 14 | "You Don't Know My Name" | Alicia Keys | 
| February 21 | "Slow Jamz" | Twista featuring Kanye West and Jamie Foxx | 
| February 28 | "Slow Jamz" | Twista featuring Kanye West and Jamie Foxx | 
| March 6 | "Yeah!" | Usher featuring Lil Jon and Ludacris | 
| March 13 | "Yeah!" | Usher featuring Lil Jon and Ludacris | 
| March 20 | "Yeah!" | Usher featuring Lil Jon and Ludacris | 
| March 27 | "Yeah!" | Usher featuring Lil Jon and Ludacris | 
| April 3 | "Yeah!" | Usher featuring Lil Jon and Ludacris | 
| April 10 | "Yeah!" | Usher featuring Lil Jon and Ludacris | 
| April 17 | "Yeah!" | Usher featuring Lil Jon and Ludacris | 
| April 24 | "Yeah!" | Usher featuring Lil Jon and Ludacris | 
| May 1 | "If I Ain't Got You" | Alicia Keys | 
| May 8 | "If I Ain't Got You" | Alicia Keys | 
| May 15 | "If I Ain't Got You" | Alicia Keys | 
| May 22 | "If I Ain't Got You" | Alicia Keys | 
| May 29 | "If I Ain't Got You" | Alicia Keys | 
| June 5 | "Burn" | Usher | 
| June 12 | "Burn" | Usher | 
| June 19 | "Burn" | Usher | 
| June 26 | "Burn" | Usher | 
| July 3 | "If I Ain't Got You" | Alicia Keys | 
| July 10 | "Confessions Part II" | Usher | 
| July 17 | "Confessions Part II" | Usher | 
| July 24 | "Lean Back" | Terror Squad | 
| July 31 | "Lean Back" | Terror Squad | 
| August 7 | "Lean Back" | Terror Squad | 
| August 14 | "Lean Back" | Terror Squad | 
| August 21 | "Lean Back" | Terror Squad | 
| August 28 | "Lean Back" | Terror Squad | 
| September 4 | "Lean Back" | Terror Squad | 
| September 11 | "Goodies" | Ciara featuring Petey Pablo | 
| September 18 | "Goodies" | Ciara featuring Petey Pablo | 
| September 25 | "Goodies" | Ciara featuring Petey Pablo | 
| October 2 | "Goodies" | Ciara featuring Petey Pablo | 
| October 9 | "Goodies" | Ciara featuring Petey Pablo | 
| October 16 | "Goodies" | Ciara featuring Petey Pablo | 
| October 23 | "My Boo" | Usher and Alicia Keys | 
| October 30 | "My Boo" | Usher and Alicia Keys | 
| November 6 | "My Boo" | Usher and Alicia Keys | 
| November 13 | "Drop It Like It's Hot" | Snoop Dogg featuring Pharrell | 
| November 20 | "Drop It Like It's Hot" | Snoop Dogg featuring Pharrell | 
| November 27 | "Drop It Like It's Hot" | Snoop Dogg featuring Pharrell | 
| December 4 | "Drop It Like It's Hot" | Snoop Dogg featuring Pharrell | 
| December 11 | "Drop It Like It's Hot" | Snoop Dogg featuring Pharrell | 
| December 18 | "Drop It Like It's Hot" | Snoop Dogg featuring Pharrell | 
| December 25 | "Drop It Like It's Hot" | Snoop Dogg featuring Pharrell | 
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See also
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 |  |  | 1942–1959 |  | 
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 |  |  | 1960–1979 |  | 
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 |  |  | 1980–1999 |  | 
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 |  |  | 2000–present |  | 
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