These are the songs that reached number one on the Top 100 Best Sellers chart in 1963 as published by Cash Box magazine.
| Issue Date | Song | Artist |
|---|---|---|
| January 5 | Telstar | The Tornadoes |
| January 12 | Telstar | The Tornadoes |
| January 19 | Go Away Little Girl | Steve Lawrence |
| January 26 | Go Away Little Girl | Steve Lawrence |
| February 2 | Walk Right In | Rooftop Singers |
| February 9 | Hey Paula | Paul & Paula |
| February 16 | Hey Paula | Paul & Paula |
| February 23 | Hey Paula | Paul & Paula |
| March 2 | Hey Paula | Paul & Paula |
| March 9 | Walk Like A Man | The Four Seasons |
| March 16 | Walk Like A Man | The Four Seasons |
| March 23 | Our Day Will Come | Ruby & The Romantics |
| March 30 | He's So Fine | The Chiffons |
| April 6 | He's So Fine | The Chiffons |
| April 13 | He's So Fine | The Chiffons |
| April 20 | He's So Fine | The Chiffons |
| April 27 | Can't Get Used to Losing You | Andy Williams |
| May 4 | I Will Follow Him | Little Peggy March |
| May 11 | I Will Follow Him | Little Peggy March |
| May 18 | I Will Follow Him | Little Peggy March |
| May 25 | If You Wanna Be Happy | Jimmy Soul |
| June 1 | It's My Party | Lesley Gore |
| June 8 | It's My Party | Lesley Gore |
| June 15 | Sukiyaki | Ryu Sakamoto |
| June 22 | Sukiyaki | Ryu Sakamoto |
| June 29 | Sukiyaki | Ryu Sakamoto |
| July 6 | Sukiyaki | Ryu Sakamoto |
| July 13 | Easier Said Than Done | The Essex |
| July 20 | Easier Said Than Done | The Essex |
| July 27 | Surf City | Jan and Dean |
| August 3 | Fingertips (pt. 2) | Little Stevie Wonder |
| August 10 | Fingertips (pt. 2) | Little Stevie Wonder |
| August 17 | Fingertips (pt. 2) | Little Stevie Wonder |
| August 24 | Fingertips (pt. 2) | Little Stevie Wonder |
| August 31 | Hello Muddah, Hello Faddah! (A Letter From Camp) | Allan Sherman |
| September 7 | My Boyfriend's Back | The Angels |
| September 14 | My Boyfriend's Back | The Angels |
| September 21 | Blue Velvet | Bobby Vinton |
| September 28 | Blue Velvet | Bobby Vinton |
| October 5 | Blue Velvet | Bobby Vinton |
| October 12 | Be My Baby | The Ronettes |
| October 19 | Sugar Shack | Jimmy Gilmer & The Fireballs |
| October 26 | Sugar Shack | Jimmy Gilmer & The Fireballs |
| November 2 | Sugar Shack | Jimmy Gilmer & The Fireballs |
| November 9 | Deep Purple | Nino Tempo & April Stevens |
| November 16 | Deep Purple | Nino Tempo & April Stevens |
| November 23 | I'm Leaving It Up To You | Dale & Grace |
| November 30 | Dominique | The Singing Nun |
| December 7 | Dominique | The Singing Nun |
| December 14 | Dominique | The Singing Nun |
| December 21 | Dominique | The Singing Nun |
| December 28 | Dominique | The Singing Nun |
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