Four-string guitar

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

Guitar family instruments with four strings

 * 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

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