The Liber Constitutionum sive Lex Gundobada ("The Book of Constitutions or Law of Gundobad"), also known as the Lex Burgundionum, or more simply the Lex Gundobada or the Liber, was issued in several parts between 483 and 516, principally by Gundobad, but also by his son, Sigismund.
"Liber Constitutionum sive Lex Gundobada", tuntud ka kui "Lex Burgundionum" või lihtsamalt "Lex Gundobada" või "Liber", anti välja mitmes osas aastatel 483–516, peamiselt Gundobadi poolt, kuid ka tema poja Sigismundi poolt.