XTR Views 7 meanings found XTR is commonly seen as a corporate brand or product name and also surfaces in scientific contexts such as X‑ray transition radiation and molecular biology. Miscellaneous Xenopus Telomerase RNA Governmental X-ray Transition Radiation Regional Tara, Queensland, Australia Computing RealArcade Compressed Data File Business XTRA Corporation Xtract iShares Standard & Poors/Toronto Stock eXchange Income Trust