The IWA World Junior Heavyweight Championship was a title for wrestlers that weigh 225 pounds and under that was being defended in the International Wrestling Association in Puerto Rico.
| Wrestler: | Times: | Date: | Place: | Notes: |
|---|---|---|---|---|
| Mike Anthony | 1 | February 19, 1994 | San Juan, Puerto Rico | title became inactive on February 20, 1994 |
| Mr. Águila | 1 | May 21, 1999 | Carolina, Puerto Rico | tournament final to crown a new champion |
| MIKAMI | 1 | February 9, 2000 | Mexico | Phantom title change when Mr. Águila left to go to WWF |
| Shane Hill | 1 | March 11, 2000 | Arroyo, Puerto Rico | |
| Israel Felicano | 1 | May 20, 2000 | Carolina, Puerto Rico | |
| Andres Borges | 1 | June 3, 2000 | Ponce, Puerto Rico | |
| Israel Felicano | 2 | June 4, 2000 | Cataño, Puerto Rico | |
| Jesus Cristobal | 1 | June 17, 2000 | Humacao, Puerto Rico | |
| Shane Hill | 2 | August 19, 2000 | Manati, Puerto Rico | |
| Andres Borges | 2 | August 19, 2000 | Manati, Puerto Rico | Shane Hill handed the title back to Borges after defeating him in a non-title match because Bordes was upset over losing a match to his tag team partner |
| Andres Borges | 3 | September 30, 2000 | Guaynabo, Puerto Rico | |
| Tommy Diablo | 1 | October 14, 2000 | Yabacoa, Puerto Rico | |
| Paparazzi | 1 | October 21, 2000 | Puerto Rico | defeated Shane Hill to win the held-up title. |
| Juventud Guerrera | 1 | October 26, 2000 | Juana Diaz, Puerto Rico | |
| Sean Hill | 3 | October 28, 2000 | Bayamón, Puerto Rico | |
| Super Crazy | 1 | December 10, 2000 | Moca, Puerto Rico | |
| Andy Anderson | 1 | April 21, 2001 | Carolina, Puerto Rico | |
| Super Crazy | 2 | June 23, 2001 | Bayamon, Puerto Rico | |
| Crash Holly | 1 | July 27, 2001 | Bayamon, Puerto Rico | |
| Super Crazy | 3 | July 28, 2001 | Carolina, Puerto Rico | |
| Andy Anderson | 2 | December 8, 2001 | Orocovis, Puerto Rico | Super Crazy was striped of the title on December 8, 2001 by GM Savio Vega |
| Minoru Fujita | 1 | January 6, 2002 | Bayamon, Puerto Rico | |
| Andy Anderson | 3 | February 2, 2002 | Bayamon, Puerto Rico | |
| Chicano | 1 | March 2, 2002 | Bayamon, Puerto Rico | |
| Stefano | 1 | April 6, 2002 | Bayamon, Puerto Rico | title was vacated on March 23, 2002 |
| Stefano | 2 | May 4, 2002 | Bayamon, Puerto Rico | Title was vacated on April 27, 2002 in Levittown, Puerto Rico |
| Diabolico | 1 | November 23, 2002 | Carolina, Puerto Rico | |
| Paparazzi | 2 | February 2, 2003 | Bayamon, Puerto Rico | |
| Noriega | 1 | April 19, 2003 | Bayamon, Puerto Rico | |
| Tommy Diablo | 2 | September 20, 2003 | Bayamon, Puerto Rico | |
| Blitz | 1 | November 1, 2003 | Bayamon, Puerto Rico | |
| Tommy Diablo | 3 | November 15, 2003 | Bayamon, Puerto Rico | |
| Blitz | 2 | November 29, 2003 | Carolina, Puerto Rico | |
| Paparazzi | 3 | February 12, 2004 | Bayamon, Puerto Rico | |
| Super Atomo | 1 | February 28, 2004 | Bayamon, Puerto Rico | |
| Blitz | 3 | April 3, 2004 | Carolina, Puerto Rico | |
| Tommy Diablo | 4 | April 17, 2004 | Bayamon, Puerto Rico | |
| Golden Boy | 1 | October 30, 2004 | Bayamon, Puerto Rico | |
| Super Mark | 1 | February 27, 2005 | Bayamon, Puerto Rico | |
| Tommy Diablo | 5 | May 21, 2005 | Toa Baja, Puerto Rico | |
| Carlitos | 1 | October 1, 2005 | Carolina, Puerto Rico | |
| Blitz | 4 | 2006 | Caguas, Puerto Rico | |
| Hammett | 1 | February 4, 2006 | Bayamon, Puerto Rico | |
| Blitz | 5 | April 15, 2006 | Aguas Buenas, Puerto Rico | |
| Carlitos | 2 | August 5, 2006 | Bayamon, Puerto Rico | |
| Super Mark | 2 | September 2, 2006 | Caguas, Puerto Rico | vacated the title on September 16, 2006 in Cayey ,Puerto Rico |
| Julio Franco | 1 | October 15, 2006 | Caguas, Puerto Rico | won the vacant title in a battle royal |
| Bolo The Red Bulldog | 1 | November 18, 2006 | Carolina, Puerto Rico | title was retired on November 25, 2006 by Orlando Toledo announcing that the Cruiserweight title will be replacing the title |