| 1964 | Gemütlicher Cosy Jazz | Oscar Klein - Miriam Klein | | 1 |
| 1969 | Blues & Boogie | Miriam Klein, Oscar Klein, Henry Chaix, Bob Carter, Hans Peter Giger | | 1 |
| 1974 | Chicagoan All Stars | Oscar Klein, Fatty George | | 4 |
| 1974 | New Orleans Function | K & K Dixielanders, Oscar Klein & Werner Keller | | 1 |
| 1974 | Pickin' the Blues, Vol. 2 | Oscar Klein | | 3 |
| 1975 | Pickin’ the Blues, Vol. 1 | Oscar Klein | | 5 |
| 1976 | 25 Years After | Milan College Jazz Society Starring Ralph Sutton, Bud Freeman, Oscar Klein, Lino Patruno | | 1 |
| 1976 | Darktown Jazz-Band | Darktown Jazz-Band Featuring Fatty George, Jimmy McPartland, Dick Cary, Oscar Klein, Charly Antolini | | 1 |
| 1977 | Two Guitars One Soul | Philadelphia Jerry Ricks & Oskar Klein | | 1 |
| 1978 | Europa Jazz Parade | Fatty George, Emil Mangelsdorff, Oscar Klein, Miriam Klein, Albert Nicholas | | 3 |
| 1978 | Band Guitar | Oscar Klein | | 1 |
| 1979 | Blues '80 | Philadelphia Jerry Ricks & Oscar Klein | | 3 |
| 1979 | Guitar Boogie Woogie | Philadelphia Jerry Ricks und Oscar Klein | | 1 |
| 1980 | Jazz Roots | Philadelphia Jerry Ricks & Oscar Klein | | 2 |
| 1980 | Low Light Blues | Philadelphia Jerry Ricks & Oscar Klein | | 2 |
| 1983 | Spiegle Willcox Riders Again | Lino Patruno & Oscar Klein Jazz Band | | 2 |
| 1987 | Blues and Other Shoes | Oscar Klein / Thomas Möckel | | 1 |
| 1987 | Blues Panorama | Oscar Klein & Jerry Ricks | | 3 |
| 1990 | Blues Panorama, Volume 2 | Oscar Klein & Jerry Ricks | | 1 |
| 1990 | European All Stars | Oscar Klein, Sammy Price | | 3 |
| 1991 | Swingtime | Oscar Klein | | 1 |
| 1993 | Early Oscar Klein 1954 - 1964 | Oscar Klein | | 1 |
| 1994 | Oscar Klein's Jazz Show featuring Romano Mussolini | Oscar Klein, Romano Mussolini | | 2 |
| 1995 | Swinging Favourites of ’45 | Dutch Swing College Band with Deep River Quartet • Rosenberg Trio • Dim Kesber • Mrs. Einstein • Oscar Klein • Wim Kolstee • Pim Jacobs & Louis van Dijk • Jaap van Kempen | | 1 |
| 1996 | Big Four / Jazz for Two | Oscar Klein & Lino Patruno | | 3 |
| 1996 | Timeless Blues | Klein, Mussolini, Gnettner, Antolini | | 2 |
| 1997 | Ein Oscar für die Old Stoariegler Dixielandband | The Old Stoariegler Dixielandband Featuring Oscar Klein | | 1 |
| 1997 | Jazz Show, Vol. II | Oscar Klein featuring Romano Mussolini, Ján Jankeje, Gregor Beck | | 1 |
| 2000 | Timeless Standards | Oscar Klein & Heinrich Altbart | | 1 |
| 2001 | Pick-A-Blues | Oscar Klein & Katie Kern | | 1 |
| 2002 | "Mir ist es immer gut gegangen..." | Oscar Klein | | 2 |
| 2012 | Cookin’ Together | Oscar Klein & Gus Backus | | 2 |
| 2012 | Gospel, Spiritual, Blues | Oscar Klein, Heini Altbart & Karol Hodas | | 1 |
| 2013 | Oscar Klein & Henri Chaix | Henri Chaix & Oscar Klein | | 1 |
| 2020 | Oscar Klein & Jerry Ricks | Oscar Klein & Jerry Ricks | | 1 |
| — | Dixie Time | Oscar Klein | | 1 |
| — | Two Sides of Fatty George (1955/56) | Fatty George, Beryl Bryden, Oscar Klein, Bill Grah | | 1 |
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