Every number one of 1973

1. 1 You're So Vain Carly Simon Jan 6 to Jan 20 · 3 weeks
2. 2 Superstition Stevie Wonder Jan 27 · 1 week
3. 3 Crocodile Rock Elton John Feb 3 to Feb 17 · 3 weeks
4. 4 Killing Me Softly with His Song Roberta Flack Feb 24 to Mar 17 · 4 weeks
5. 5 Love Train The O'Jays Mar 24 · 1 week
6. 6 Killing Me Softly with His Song Roberta Flack Mar 31 · 1 week
7. 7 The Night the Lights Went Out in Georgia Vicki Lawrence Apr 7 to Apr 14 · 2 weeks
8. 8 Search ↗ Tie a Yellow Ribbon Round the Ole Oak Tree Dawn featuring Tony Orlando Apr 21 to May 12 · 4 weeks
9. 9 You Are the Sunshine of My Life Stevie Wonder May 19 · 1 week
10. 10 Frankenstein The Edgar Winter Group May 26 · 1 week
11. 11 My Love Paul McCartney and Wings Jun 2 to Jun 23 · 4 weeks
12. 12 Give Me Love (Give Me Peace on Earth) George Harrison Jun 30 · 1 week
13. 13 Will It Go Round in Circles Billy Preston Jul 7 to Jul 14 · 2 weeks
14. 14 Bad, Bad Leroy Brown Jim Croce Jul 21 to Jul 28 · 2 weeks
15. 15 The Morning After Maureen McGovern Aug 4 to Aug 11 · 2 weeks
16. 16 Touch Me in the Morning Diana Ross Aug 18 · 1 week
17. 17 Brother Louie Stories Aug 25 to Sep 1 · 2 weeks
18. 18 Let's Get It On Marvin Gaye Sep 8 · 1 week
19. 19 Delta Dawn Helen Reddy Sep 15 · 1 week
20. 20 Let's Get It On Marvin Gaye Sep 22 · 1 week
21. 21 Search ↗ We're an American Band Grand Funk Sep 29 · 1 week
22. 22 Half-Breed Cher Oct 6 to Oct 13 · 2 weeks
23. 23 Angie The Rolling Stones Oct 20 · 1 week
24. 24 Midnight Train to Georgia Gladys Knight & the Pips Oct 27 to Nov 3 · 2 weeks
25. 25 Search ↗ Keep on Truckin' Eddie Kendricks Nov 10 to Nov 17 · 2 weeks
26. 26 Search ↗ Photograph Ringo Starr Nov 24 · 1 week
27. 27 Top of the World The Carpenters Dec 1 to Dec 8 · 2 weeks
28. 28 The Most Beautiful Girl Charlie Rich Dec 15 to Dec 22 · 2 weeks
29. 29 Time in a Bottle Jim Croce Dec 29 · 1 week (2 in a row)

The numbers beside each song count the year's number ones in order. Weeks are counted from the Billboard Hot 100 charts dated in 1973.