| UB Edition (education, BTPM) |  (podcast) | Official links: program page, BTPM |
| UK Black (special interest, BBC) | (podcast) | Official links: program page, BBC |
| UKNY (pop/rock music, WFUV) | (1 broadcast) | Official links: program page, WFUV |
| Ukraine: Security Issue (international service, Suspilne) | (2 broadcasts) | Official links: program page, Suspilne |
| UN Today (news, UN) | (1 broadcast) | Official links: program page, UN |
| Unbound (pop/rock music, KCSN) | (1 broadcast) | Official links: program page, KCSN |
| Uncharted Waters (eclectic music, Mvyradio) | (2 broadcasts) | Official links: program page, Mvyradio |
| Uncle Meghabhuti and Funkscribe Present (urban music, KBCS) | (1 broadcast) | Official links: program page, KBCS |
| Uncommon Knowledge (science/tech, WGLT) | (podcast) | Official links: program page, WGLT |
| Under the Floorboards (eclectic music, KGNU) | (1 broadcast) | Official links: program page, KGNU |
| Under the Influence (media, CBC) | (41 broadcasts+podcast) | Official links: program page, CBC |
| Under the Microscope (science/tech, KBIA) | (podcast) | Official links: program page, KBIA |
| Under the Radar (regional/local affairs, WGBH) | (3 broadcasts) | Official links: program page, WGBH |
| UnderCurrents (eclectic music, NV1) | (95 broadcasts) | Official links: program page, NV1 |
| Underground Garage (pop/rock music) | (3 broadcasts) | Official links: program page |
| Undiscovered (science/tech, NYPR) | (podcast) | Official links: program page, NYPR |
| Unfictional (documentary, KCRW) | (podcast) | Official links: program page, KCRW |
| United Groove (jazz music, KKJZ) | (1 broadcast) | Official links: program page, KKJZ |
| United Nations Audio (talk, UN) | (podcast) | Official links: program page, UN |
| United States of Americana (folk music, APM) | (1 broadcast) | Official links: program page, APM |
| United States of Anxiety (politics/issues, NYPR) | (podcast) | Official links: program page, NYPR |
| University Beat (education, WUSF) | (podcast) | Official links: program page, WUSF |
| University Concert (classical music, IPR (Iowa)) | (2 broadcasts) | Official links: program page, IPR (Iowa) |
| Unlocking Bryson's Brain (health, CBC) | (podcast) | Official links: program page, CBC |
| Unreal Bluegrass (country/bluegrass music) | (1 broadcast) | Official links: program page |
| Unreserved (documentary, CBC) | (39 broadcasts+podcast) | Official links: program page, CBC |
| Up First (news, NPR) | (podcast) | Official links: program page, NPR |
| Up Front (talk, VOA) | (podcast) | Official links: program page, VOA |
| Up North (magazine, CBC) | (2 broadcasts+podcast) | Official links: program page, CBC |
| Up to Date (regional/local affairs, KCUR) | (1 broadcast+podcast) | Official links: program page, KCUR |
| Up to Speed (magazine, CBC) | (2 broadcasts) | Official links: program page, CBC |
| Upbeat (classical music, RNZ (New Zealand)) | (2 broadcasts+podcast) | Official links: program page, RNZ (New Zealand) |
| UPR Presents (miscellaneous, UPR) | (1 broadcast) | Official links: program page, UPR |
| Uprising (politics/issues, Pacifica) | (6 broadcasts) | Official links: program page, Pacifica |
| Urban Jazz Experience (jazz music) | (1 broadcast) | Official links: program page |
| Urban Man (miscellaneous, KCRW) | (podcast) | Official links: program page, KCRW |
| UWM Today (talk, WUWM) | (2 broadcasts+podcast) | Official links: program page, WUWM |
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