- String Quartet No. 1 in B-flat major, D. 18
- String Quartet No. 2 in C major, D. 32
- String Quartet No. 3 in G minor, D. 173
- String Quartet No. 4 in C major, D. 46
- String Quartet No. 5 in B-flat major, D. 68
- String Quartet No. 6 in D major, D. 74
- String Quartet No. 7 in E-flat major, D. 87
- String Quartet No. 8 in B-flat major, D. 112
- String Quartet No. 9 in A major, D. 174
- String Quartet No. 10 in E-flat major, D. 87
- String Quartet No. 11 in D minor, D. 703
- String Quartet No. 12 in C minor, D. 703
- String Quartet No. 13 in A minor, D. 804
- String Quartet No. 14 in D minor, D. 810
- String Quartet No. 15 in G major, D. 887
"D catalog numbers" refer to the numbering system devised by Otto Erich Deutsch, a musicologist who extensively cataloged Schubert's works. These numbers are widely used to identify and reference Schubert's compositions.