| X JAPAN | |
| XM25空爆彈發射器 | |
| XM26散彈槍 | |
| XM29 OICW | |
| XM312 | |
| XM320榴彈發射器 | |
| X-Man | |
| Xmas | |
| Xming | |
| XMLHTTP | |
| XML Schema | |
| XML Web Service | |
| XML 摘要 | |
| XML 文件規格 | |
| XML 文件規格檢視器 | |
| XML 簽章 | |
| XML 結構描述定義 | |
| XML 結構描述定義 (XSD) | |
| XMMS | |
| XNA Game Studio Express | |
| XnView | |
| XOOPS | |
| X/Open | |
| XPath | |
| XPD | |
| Xpdf | |
| XPDL | |
| Xphone | |
| XPS | |
| XPS 文件格式 | |
| XPS 文件檔案格式 | |
| XPS 檢視器 | |
| XPT | |
| XRCD | |
| XRE | |
| XRI | |
| X-SAMPA | |
| X-SAMPA 音標 | |
| XScale | |
| .xsd 檔案 | |
| Xserve | |
| Xserve RAID | |
| XSL-FO | |
| XSLT | |
| XSU | |
| XtremLab | |
| XTS | |
| XUA | |
| Xubuntu | |
| xùjí | |
| 國語 |