This is a list of IBF Muay Thai world champions, showing every world champion certificated by the International Boxing Federation Muaythai (IBF Muay Thai). The IBF, which is one of the four major governing bodies in professional boxing, started certifying their own Muay Thai world champions in late 2017. The IBF is the second boxing organization to start certifying Muay Thai World champions following World Boxing Council (WBC).
| No. | Name | Date winning | Date losing | data-sort-type="number" style="width:10%;" | Days | data-sort-type="number" style="width:10%;" | Defenses |
|---|---|---|---|---|---|---|---|
| 1 | align=left |   Youssef Boughanem | April 28, 2018 | Current | 0 | ||
| No. | Name | Date winning | Date losing | data-sort-type="number" style="width:10%;" | Days | data-sort-type="number" style="width:10%;" | Defenses |
|---|---|---|---|---|---|---|---|
| 1 | align=left |  Pinklao Bangkoknoivillage | December 20, 2017 | Current | 0 | ||
| No. | Name | Date winning | Date losing | data-sort-type="number" style="width:10%;" | Days | data-sort-type="number" style="width:10%;" | Defenses |
|---|---|---|---|---|---|---|---|
| 1 | align=left | Darky Lukmakamwan | February 13, 2018 | Current | 0 | ||
| No. | Name | Date winning | Date losing | data-sort-type="number" style="width:10%;" | Days | data-sort-type="number" style="width:10%;" | Defenses |
|---|---|---|---|---|---|---|---|
| 1 | align=left | December 21, 2017 | Current | 0 | |||
| No. | Name | Date winning | Date losing | data-sort-type="number" style="width:10%;" | Days | data-sort-type="number" style="width:10%;" | Defenses |
|---|---|---|---|---|---|---|---|
| 1 | align=left | December 21, 2017 | Current | 0 | |||
| No. | Name | Date winning | Date losing | data-sort-type="number" style="width:10%;" | Days | data-sort-type="number" style="width:10%;" | Defenses |
|---|---|---|---|---|---|---|---|
| 1 | align=left |  Nadaka Eiwasportsgym (Nadaka Yoshinari) | September 26, 2018 | Current | 0 | ||