| U. Blagov, P. Hoffman And L. Markevitch | 1 | |
| U. Marfesi | 1 | |
| U. Pini-Corsi | 1 | 1906 |
| U. S. C. "Trojan" Band | 1 | |
| The U. S. Coast Guard Band, 11th Naval District | 1 | 1944 |
| The U. S. Coast Guard Band | 1 | 1944 |
| U. S. Maritime Service Training Station Band | 1 | 1945 |
| The U.S. Army Band And Soldiers Chorus | 1 | |
| U.S. Grant High School Choir | 1 | 1949 |
| U.S. Grant High School Pep Band | 1 | 1949 |
| U.S. Grant High School Students | 1 | 1949 |
| U.S. Marine Band | 5 | 1906 - 1920 |
| The U.S. Marine Band | 8 | 1899 - 1920 |
| U.S. Military Academy Band West Point, N.Y. U.S.A. | 1 | 1956 |
| U.S. Naval Academy Band | 1 | 1921 |
| U.S. Naval Reserve Band | 1 | 1922 |
| U.S.S. Pennsylvania Band | 2 | 1918 - 1919 |
| U.S.S.R. Red Banner Ensemble Of Red Army Songs And Dances | 2 | 1939 - 1945 |
| Udo Jürgens | 6 | 1956 - 1957 |
| Udo Vietz | 1 | 1951 |
| Ugo Donarelli | 1 | 1923 |
| Ukelele Ike | 1 | 1925 |
| Ukrainian Bandurist's Chorus | 1 | |
| Ukrainian Chorus | 1 | |
| Ukrainian Church Chorus | 3 | 1921 |
| Ukrainian Church Quartette | 2 | 1921 |
| Ukrainian Male Chorus | 2 | 1943 - 1950 |
| Ukrainian National Choir 'Boyan' | 1 | 1954 |
| Ukrainian National Chorus | 2 | 1923 |
| Derevensky Orkestr | 1 | |
| Ukrainska Orchestra | 1 | |
| Ukrainska Orchestra Pawla Humeniuka | 1 | 1927 |
| Ukrainska Orchiestra Ludowa | 1 | |
| Ukrainska Selska Orchestra | 1 | |
| Ukrainska Selska Orkestra | 1 | |
| Ukrainski Spiew Ludowy | 1 | |
| Ukelele "Bob" Williams | 1 | 1925 |
| Ukulele Bailey (Webb Hahn) | 1 | 1925 |
| Ukulele Hughes | 1 | 1925 |
| Ukulele Ike | 11 | 1925 - 1929 |
| Ukulele Ike (Cliff Edwards) | 8 | 1928 - 1930 |
| Ulf Carlén | 2 | 1954 - 1955 |
| Ulf Linde | 1 | 1950 |
| Ulf Linde Quartet | 2 | 1951 |
| Ulf Linde Quintet | 2 | 1950 |
| Ulla Billquist | 51 | 1932 - 1952 |
| Ulla Billquist och Bert Wikholm | 1 | 1942 |
| Ulla Billquist och Gösta Jonsson | 6 | 1940 - 1943 |
| Ulla Billquist och Lennart Lauber | 1 | 1943 |
| Ulla Billquist och Sven-Olof Sandberg | 1 | 1940 |
| Ulla Billquist Och Gustav Torrestad | 1 | 1942 |
| Ulla Billquist Och Sigvard Hallgren | 1 | 1939 |
| Ulla Britt Söderström | 2 | 1954 - 1956 |
| Ulla Christenson | 3 | 1953 - 1956 |
| Ulla Katajavuori | 3 | 1949 - 1950 |
| Ulla Sallert | 4 | 1949 - 1954 |
| Ulla Sjöblom | 1 | 1956 |
| Ulla-Bella | 1 | 1957 |
| Ulla-Bella Och Alf Pröysen | 1 | 1957 |
| Ulla-Britt Söderström Med Jørgen Ingmann | 1 | 1954 |
| Ulric Gingras | 2 | |
| Ulrich Berner | 1 | 1932 |
| Ulrik Neuman | 1 | |
| Ulrik Neumann, Ove Sprogøe, Svend Asmussen Og Hans Orkester | 1 | 1952 |
| The Ulster Amateur Flute Band | 2 | 1932 |
| Ultraphon Duo | 2 | 1944 - 1946 |
| Ultraphon-Duo | 7 | 1939 - 1946 |
| Ulyses James | 1 | 1948 |
| Ulysses Lappas | 4 | 1923 - 1924 |
| Uma | 1 | 1942 |
| Uma And Babul | 1 | 1942 |
| Umberto Marcato | 1 | 1957 |
| Un Groupe D'Internes | 1 | 1946 |
| Un Parasite | 1 | 1946 |
| Una Bourne | 5 | 1924 - 1928 |
| Una Brandon-Jones, Hertzel Goldbloom And Martin Lawrence | 1 | 1940 |
| Una Mae Carlisle | 11 | 1940 - 1945 |
| Uncle "Am" Stuart | 8 | 1924 - 1926 |
| Uncle Ben Hawkins | 4 | 1927 - 1929 |
| Uncle Bill Adams And "The Let's Pretenders" | 1 | 1946 |
| Uncle Billy Hawkins | 1 | 1926 |
| Uncle Bob | 1 | 1926 |
| Uncle Bob And His Jolly Fellows | 1 | 1931 |
| Uncle Bob's Little Party | 1 | 1931 |
| Uncle Bruno | 1 | 1932 |
| Uncle Buck (The Singing D.J.) And The Ridge Riders | 1 | |
| Uncle Bud And His Plow Boys | 4 | 1932 - 1933 |
| Uncle Bud Landress | 11 | 1925 - 1931 |
| Uncle Bud Landress And Georgia Yellow Hammers | 1 | 1927 |
| Uncle Bud Walker | 1 | 1930 |
| Uncle Budd Landress | 1 | 1931 |
| Uncle Charlie | 5 | 1923 |
| Uncle Charlie And Company | 1 | 1926 |
| Uncle Cherry | 3 | 1924 |
| Uncle Dave Macon | 96 | 1924 - 1947 |
| Uncle Dave Macon - Smoky Mt. Glenn | 2 | 1938 - 1940 |
| Uncle Dave Macon And His Fruit Jar Drinkers | 2 | 1947 |
| Uncle Dave Macon And His Fruit-Jar Drinkers | 9 | 1927 |
| Uncle Dave Macon And Kirk And Sam McGee | 2 | 1937 |
| Uncle Dave Macon And McGee Brothers | 2 | 1927 |
| Uncle Dave Macon And Sam McGee | 2 | 1928 - 1931 |
| Uncle Dave Macon And Sid Harkreader | 13 | 1924 - 1930 |
| Uncle Dave Macon And Smoky Mt. Glenn | 1 | 1939 |
| Uncle Dick With Orch Acomp | 1 | 1928 |
| Uncle Don | 1 | 1948 |
| Uncle Earle | 1 | 1953 |
| Uncle Eck Dunford | 5 | 1927 - 1929 |
| Uncle Eck Dunford - Ernest Stoneman | 1 | 1928 |
| Uncle Eck Dunford - Hattie Stoneman | 1 | 1928 |
| Uncle Eck Dunford And Ernest Stoneman | 1 | 1927 |
| Uncle Eph | 1 | 1924 |
| Uncle George | 1 | 1923 |
| Uncle George Green And His Boys | 1 | 1929 |
| Uncle George's Party | 4 | 1923 - 1930 |
| Uncle Harry | 3 | 1923 - 1931 |
| Uncle Harve's Ragtime Wranglers | 3 | 1951 - 1953 |
| Uncle Henry | 3 | |
| Uncle Henry's Original Kentucky Mountaineers | 3 | 1947 - 1949 |
| Uncle Jack | 1 | |
| Uncle Jim Hawkins | 5 | 1926 - 1927 |
| Uncle Jim Seaney | 2 | 1927 |
| Uncle Joe | 1 | |
| Uncle Joe Shippee | 2 | 1925 - 1926 |
| Uncle John | 1 | |
| Uncle John Stuart | 1 | 1928 |
| Uncle Len | 5 | 1930 - 1933 |
| Uncle Lumpy | 5 | 1948 - 1954 |
| Uncle Mac | 20 | 1938 - 1953 |
| Uncle Mac And The Kiddie Playhouse | 1 | |
| Uncle Mac The Story Teller | 2 | |
| Uncle Martin | 1 | 1946 |
| Uncle Mike | 2 | 1967 |
| Uncle Ned And His Hayloft Jamboree | 1 | 1951 |
| Uncle Pete And Louise | 2 | 1935 |
| Uncle Peter (Peter Madren) With Auntie Norma (Norma Shebbeare) | 1 | 1958 |
| Uncle Peter's Party | 1 | 1923 |
| Uncle Ruye And His Sage Hollow Boys | 1 | 1949 |
| Uncle Si (Frank Welling) | 1 | 1949 |
| Uncle Skipper | 1 | 1938 |
| Uncle Steve Hubbard And His Boys | 3 | 1927 - 1928 |
| Uncle Tom | 1 | |
| Uncle Tom Collins | 3 | 1927 |
| Uncle Win Stracke, Anne Lloyd, The Sandpipers, Mitchell Miller And Orchestra | 1 | 1953 |
| Uncle Win Stracke, Mitch Miller And Orchestra | 1 | 1957 |
| Undine von Medvey | 2 | |
| Die Ungarischen Zigeunerknaben | 1 | 1949 |
| Unge Akademikeres Kor | 1 | 1950 |
| The Unicorn Military Band | 1 | |
| Union Avenue Five | 1 | 1924 |
| Union Symphony Orchestra | 1 | 1926 |
| Unique Novelty Orchestra | 1 | 1921 |
| Unique Quartet | 1 | 1893 |
| The Uniques | 1 | 1957 |
| Unison Dance Band | 1 | 1927 |
| The Unison Talkie Boys | 1 | 1930 |
| United Bands [Salvation Army] | 1 | 1935 |
| United Guards Band | 1 | 1931 |
| United Songsters | 1 | 1934 |
| The United States Army Air Forces Band | 2 | 1945 |
| United States Army Band | 1 | 1929 |
| United States Hotel Orch. | 1 | 1920 |
| United States Hotel Orchestra | 2 | 1920 |
| United States Marine Band | 12 | 1890 - 1928 |
| United States Navy Academy Band | 1 | 1907 |
| United States Navy Band | 3 | 1928 |
| The Unitones | 4 | 1949 - 1950 |
| Unity Male Voice Choir | 1 | 1938 |
| The Unity Quartette | 5 | 1916 - 1919 |
| Univ.-Prof. Dr. E. M. Von Hornbostel | 7 | 1931 |
| Univ.-Prof. Dr. F. M. Von Hornbostel | 5 | 1931 |
| Universal Cowboys | 4 | 1939 |
| Universal Dance Orchestra | 2 | 1926 - 1927 |
| Universal Match | 1 | 1942 |
| University Of Illinois Mllitary Band | 1 | 1925 |
| Universal Syncopators | 1 | 1929 |
| Universal Trio | 1 | 1948 |
| The Universal-International Orchestra | 13 | 1954 |
| The Universals [Philadelphia] | 1 | 1957 |
| University Boys | 2 | 1928 - 1929 |
| University Dance Orchestra | 2 | 1924 - 1925 |
| University Eight | 1 | 1927 |
| University Five | 2 | 1920 |
| University Of California Band | 1 | 1929 |
| University Of Dayton Band And University Of Dayton Glee Club | 1 | 1927 |
| University Of Notre Dame Orchestra | 1 | 1929 |
| University Of Pennsylvania Choral Society | 1 | |
| University Of Texas Long Horn Band | 1 | 1928 |
| The University Orchestra | 1 | 1929 |
| The University Players | 1 | 1925 |
| University Sextette | 14 | 1924 - 1926 |
| University Six | 6 | 1926 - 1928 |
| University Syncopators | 4 | 1929 - 1930 |
| [Unknown] | 28 | 1904 - 1974 |
| Unknown | 2 | 1916 - 1941 |
| Unn Nilo | 1 | 1954 |
| The Unnatural Seven | 3 | 1948 |
| Unni Bernhoft | 1 | 1955 |
| Die Unterhaltungssinfoniker | 2 | |
| Die Unterhaltungssinfoniker, Theo Reuter, Walter Gorges | 1 | |
| Up-To-Date Orchestra | 1 | |