| UB Edition (education, WNED) |  (podcast) | Official links: program page, WNED |
| Ujima Radio (jazz music, BBC) | (2 broadcasts) | Official links: program page, BBC |
| UK Black (special interest, BBC) | (podcast) | Official links: program page, BBC |
| UKG with Cameo (urban music, BBC) | (1 broadcast) | Official links: program page, BBC |
| UN Today (news, UN) | (1 broadcast) | Official links: program page, UN |
| Unbound (pop/rock music, KCSN) | (1 broadcast) | Official links: program page, KCSN |
| 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 Influence (media, CBC) | (68 broadcasts+podcast) | Official links: program page, CBC |
| Under the Microscope (science/tech, KBIA) | (podcast) | Official links: program page, KBIA |
| UnderCurrents (eclectic music, NV1) | (54 broadcasts) | Official links: program page, NV1 |
| Underground Garage (pop/rock music, VOA) | (8 broadcasts) | Official links: program page, VOA |
| Underground Railroad (urban music, WBAI) | (1 broadcast) | Official links: program page, WBAI |
| Underwater Theme Park (eclectic music, WFMU) | (1 broadcast) | Official links: program page, WFMU |
| Unearthed (pop/rock music, ABC) | (podcast) | Official links: program page, ABC |
| UNF Osprey Radio (pop/rock music, WJCT) | (1 broadcast) | Official links: program page, WJCT |
| Unfictional (documentary, KCRW) | (3 broadcasts+podcast) | Official links: program page, KCRW |
| Unforgettable (pop/rock music, BBC) | (1 broadcast) | Official links: program page, BBC |
| Unforgettable with Bob Roberts (talk, BBC) | (3 broadcasts) | Official links: program page, BBC |
| United Groove (jazz music, KKJZ) | (1 broadcast) | Official links: program page, KKJZ |
| University Beat (education, WUSF) | (podcast) | Official links: program page, WUSF |
| University Concert (classical music, IPR (Iowa)) | (2 broadcasts) | Official links: program page, IPR (Iowa) |
| University Forum (talk, WRTI) | (1 broadcast) | Official links: program page, WRTI |
| University of the Air (education, WPR) | (2 broadcasts) | Official links: program page, WPR |
| Unmissable (pop/rock music, BBC) | (1 broadcast) | Official links: program page, BBC |
| Unreliable Evidence (talk, BBC) | (3 broadcasts) | Official links: program page, BBC |
| Up All Night (news, BBC) | (1 broadcast+podcast) | Official links: program page, BBC |
| Up Front (children's/youth, VOA) | (1 broadcast+podcast) | Official links: program page, VOA |
| Up to Date (regional/local affairs, KCUR) | (1 broadcast+podcast) | Official links: program page, KCUR |
| Up to Speed (magazine, CBC) | (1 broadcast) | Official links: program page, CBC |
| Upbeat (classical music, RNZ (New Zealand)) | (2 broadcasts+podcast) | Official links: program page, RNZ (New Zealand) |
| Upfront (magazine, BBC) | (1 broadcast) | Official links: program page, BBC |
| UPR Presents (miscellaneous, UPR) | (2 broadcasts) | Official links: program page, UPR |
| Uprising (politics/issues, Pacifica) | (7 broadcasts) | Official links: program page, Pacifica |
| Uptown Blues Party (blues music, WTMD) | (1 broadcast) | Official links: WTMD |
| Urban Jazz Experience (jazz music, WPPB) | (1 broadcast) | Official links: program page, WPPB |
| Urban Jungle Show (pop/rock music, WKCR) | (1 broadcast) | Official links: program page, WKCR |
| Urban Man (miscellaneous, KCCK) | (podcast) | Official links: program page, KCCK |
| UWM Today (talk, WUWM) | (2 broadcasts+podcast) | Official links: program page, WUWM |
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