List of DC Comics characters: X X X

| Name_ | Original_Publisher | First_Appearance | Year_ | Date_ |
|---|---|---|---|---|
| Xenofobe | DC Comics | Superman , Vol. 1 #295 | 1976 | January |
| Xeo | DC Comics | Detective Comics , Vol. 1. #260 | 1958 | October |
| Xera | DC Comics | Legion of Super-Heroes , Vol. 3, #32 | 1987 | March |
| Xero | DC Comics | Xero, Vol. 1, #1 | 1997 | May |
| Xiang-Fa | DC Comics | Green Lantern , Vol. 3, #19 | 1991 | December |
| Xiuhtecutli | DC Comics | Justice League International , Vol. 2, #63 | 1994 | April |
| XL Terrestrial | Warner Bros. Animation | Teen Titans (TV series) | 2004 | August 28 |
| Xola Aq | DC Comics | Adventure Comics , Vol. 1, #350 | 1966 | November |
| Xolotl | DC Comics | 52 , Vol. 1, #21 | 2006 | September |
| Xombi | Milestone Media | Xombi , Vol. 1, #0 | 1994 | January |