A
- Adamowski Quartet
- Aeolian Quartet
- Aiana String Quartet
- Alban Berg Quartet
- Alani Quartet
- Alberni Quartet
- ALEA Quartet
- Allegri Quartet
- Alexander Quartet
- Amadeus Quartet
- Amar Quartet
- Amaryllis String Quartet
- Amati Quartet
- Amsterdam Quartet
- Ancora String Quartet
- Angeles String Quartet
- Apollon Musagete Quartett
- Ardeo String Quartet
- Ardeton String Quartet
- Arditti Quartet
- Arianna String Quartet
- Ariel String Quartet
- Armadillo String Quartet
- Artaria String quartet
- Arvesen Quartet
- Atrium String Quartet
- Australian String Quartet
- Avalon Quartet
- Aviv String Quartet
- Avoca String Quartet
Read more about this topic: List Of String Quartet Ensembles