| Song Title | Artist | Topic |
| UBIK | The Electromagnetic Azoth | time travel |
| U.F.O.F. | Big Thief | acronyms |
| Ugly | Sass Jordan ft George Clinton | one word titles |
| Ugly Beauty | Thelonious Monk | beauty |
| The Ugly Duckling | Danny Kaye | rejection |
| Ugly Man | Rickie Lee Jones | stick it to the man |
| Uja | Tanya Tagaq | wordless vocals |
| Ultralight Beam | Kanye West | influenced by gospel |
| Ulvetid | Kvelertak | wolves |
| Ulysses | Jake Thackray | dogs |
| Um Canto de Afoxé para o Bloco do Ilê | Caetano Veloso & Cobra Coral Carnival Choir | choirs |
| Um, Um, Um, Um, Um, Um | Major Lance | parks |
| Umbombela | Soweto Gospel Choir | choirs |
| Umi | Pinkshinyultrablast | Russia |
| Umi Says | Mos Def | light |
| Un bel dì vedremo (from Madama Butterfly) | Giacomo Puccini (sung by Maria Callas) | leaving or being left behind |
| Un bel dì vedremo (from Madama Butterfly) | Giacomo Puccini (sung by Gloria Storchio) | the number one |
| Un Día | Juana Molina | genre defying |
| Un homme et une femme | Francis Lai | wordless vocals |
| Un peu plus haut, un peu plus loin | Ginette Reno | Canada |
| Un Ramito de Violetas | Cecilia | secret admirers |
| Un Veneno | C. Tangana & El Niño de Elche | poison |
| Una Dos y Tres | Patxi Andión | markets & fairs |
| Una Mattina & For the Love of a Princess | Gerard Pla Daró & Nassim Zaouche | songs by buskers |
| Una spiaggia a mezzogiorno | Ennio Morricone ft Edda Dell’Orso | falsetto |
| Una voce allo specchio | Ennio Morricone | mirrors |
| Unbelievable | Big Ghana Band | disbelief |
| Unbreak My Heart | Toni Braxton | reversing |
| Uncertain Smile | The The | smiling & laughing |
| Uncertain Smile (12” Remix) | The The | 1980s 12” singles |
| Unchained Melody | The Righteous Brothers | songs that build |
| Uncle John’s Band | Grateful Dead | community |
| Uncloudy Day | The Staple Singers | clouds |
| Unconditional | Jacksoul | notable outros or codas |
| Uncontrollable Urge | Devo | id, ego & superego |
| Undebel | Diego El Cigala | faith |
| Undecided | Chick Webb & His Orchestra with Ella Fitzgerald | indecision |
| Under a Blanket of Blue | Ella Fitzgerald & Louis Armstrong | blue |
| Under African Skies | Paul Simon | sky |
| Under Ice | Kate Bush | snow & ice |
| Under Ice | Kate Bush | underwater |
| Under Mi Sensi | Barrington Levy | denial |
| Under My Bed | Meiko | bags & containers |
| Under Pressure | Queen & David Bowie | duets |
| Under the Boardwalk | The Drifters | the coast |
| Under the Bridge | Red Hot Chili Peppers | bridges |
| Under the Milky Way | The Church | celestial bodies |
| Under the Table | Fiona Apple | single-mindedness |
| Under the Water | Merrill Bainbridge | forgotten follow-ups |
| Under You | Better Than Ezra | from New Orleans |
| Under Your Thumb | Godley & Creme | ghosts |
| Undercover of the Night | The Rolling Stones | police |
| Underground | Tom Waits | basements & underground |
| Underpass | John Foxx | synth pop 1980-2000 |
| Underwater | Ghostface Killah | surreal songs |
| Underwater Love | Smoke City | swimming & bathing |
| Undo the Knots | Julie Carrick | knots & ties |
| Undress Me | Marc Almond | seduction |
| Une noix | Charles Trenet | nuts & edible seeds |
| Une Sale Histoire (Female Version) | Fab 5 Freddy | B sides |
| Unemployed in Summertime | Emilíana Torrini | summer |
| Unemployment Blues | Macka B | unemployment |
| Unfair | Pavement | California |
| Unfinished Sympathy | Massive Attack | great album or mixtape openers |
| Unfunky UFO | Parliament | surprise encounters |
| Ungodly Kingdom | Jah Wobble | forgotten follow-ups |
| Unhappy Birthday | The Smiths | anniversaries |
| The Uninvited Guest | Carpenters | visitors |
| Union Jack? Thall’s Cac! | Oi Polloi | Scotland |
| Unisex Chipshop | Bill Bailey | unusual rhymes |
| Unison | Björk | compromise |
| United Breaks Guitars | Sons of Maxwell | guitars |
| Unity | The O’Jays | unity |
| Unity Raise Your Banners High | John Tams | unity |
| The Universal | Blur | the future |
| Universal Tellerwäscher | Die Sterne | restaurants & cafes |
| University of Life | Chris Webby ft Madi Wolf | higher education |
| Unknown Legend | Neil Young | motorbikes |
| Unknown Soldier (Pts 1 & 2) | Fela Kuti | justice |
| Unknown Song | Tommy and Mary | songs by buskers |
| Unknown Tune | Guitar Wifie of Aberdeen | songs by buskers |
| Uno-Dos Ultraviolento | Los Violadores | books #2 |
| Unpretty | TLC | tattoos & piercings |
| The Unquiet Grave | Shirley Collin\s | the afterlife |
| Unsquare Dance | Dave Brubeck Quartet | geometric shapes |
| Until I Believe in My Soul | Dexys Midnight Runners | channelling pain |
| Until the End of the World | U2 | biblical songs |
| Until You Come Back to Me (That’s What I’m Gonna Do) | Aretha Franklin | influenced by gospel |
| Untitled | Buddy Guy with Quinn Sullivan | collaborations & side projects |
| Untitled | Niladri Kumar | musically adventurous |
| Untitled | Alanis Morissette | hidden tracks |
| Untitled | R.E.M. | hidden tracks |
| Unwind | UK Decay | underrated artists |
| Up a Tree Again | Looper | immaturity |
| Up All Night | Take That | fictional commercials |
| Up and Down, Up and Down (I Will Lead Them Up and Down) | Duke Ellington & His Orchestra | Shakespeare |
| Up Here in the North of England | The Icicle Works | northern England |
| Up on the Roof | The Drifters | rendezvous |
| Up on the Sun | Meat Puppets | fathers and daughters |
| Up the Down Escalator | The Chameleons | teachers |
| Up the Hill and Down the Slope | The Loft | fairgrounds |
| Up the Junction | Squeeze | storytelling songs |
| Up the Mountain | Regina Spektor | bees |
| Up the ‘Pool | Jethro Tull | anticipation |
| Up the Tower | Protomartyr | stairs, ladders & elevators |
| Up the Wooden Hills to Bedfordshire | Small Faces | dreams |
| Up – Up and Away | The 5th Dimension | notable key changes |
| Up Where We Belong | Buffy Sainte-Marie | ‘high’ songs |
| The Upstairs Room | The Cure | rooms |
| Uptown | The Crystals | social class |
| Uptown Top Ranking | Althea & Donna | fashion |
| Urami Bushi (My Grudge Blues) | Meiko Kaji | stupidity |
| Uranium Rock | Warren Smith | geology |
| URAQT | M.I.A. | letters, emails & telegrams |
| Urban Ospreys | The Nightingales | urban wildlife |
| Urge for Going | Joni Mitchell | finishing |
| Use Me | Bill Withers | funk |
| Used to Be a Cop | Drive-By Truckers | police |
| Used to Be a Mountain | Old Crow Medicine Show | wastelands |
| Uska Dara | Eartha Kitt | Asian cities |
| Utru Horas | Orchestra Baobab | saxophone |