There are many instruments which can be or are commonly referred to as four string guitars.

Guitar family instruments with four strings[edit]

• Bass guitar
• Braguinha
• Cak used in Kroncong music
• Cavaquinho
• Celovic used in Tamburica orchestras
• Cuatro Venezolano
• Tenor guitar
• Ukulele
• Cigar box guitars often have three or four strings.
• Duitara used in Khasi music

Guitar family instruments with four courses of strings[edit]

• The Renaissance guitar.
• Brac and Bugaria used in Tamburica orchestras
• Some Chitarra Battentes
• Some Kabosys
• Tahitian ukulele
• Tiple