The Bolnisi cross (Georgian: ბოლნური ჯვარი bolnuri ǰvari) is a cross symbol, taken from a 5th-century ornament at the Bolnisi Sioni church, which came to be used as a national symbol of Georgia.

It is a variant of the cross pattée popular in Christian symbolism of late antiquity and the early medieval period. The same symbol gave rise to cross variants used during the Crusades, the Maltese cross of the Knights Hospitaller and (via the Jerusalem cross and the Black cross of the Teutonic Order) the Iron cross used by the German military.

The four small crosses used in the Georgian flag are officially described as bolnur-kacʼxuri (bolnur-katskhuri, ბოლნურ-კაცხური) even though they are only slightly pattée.

• Grapevine cross
• Christian cross variants

• Michael Tarchnišvili: Geschichte der kirchlichen georgischen Literatur (= Studi e Testi. 185, ZDB-ID 762276-4). Auf Grund des 1. Bandes der georgischen Literaturgeschichte von K. Kekelidze bearbeitet. Biblioteca Apostolica Vaticana, Città del Vaticano 1955.
• Elene Mačavariani: Bolnisis sionis samšeneblo carcera. Mec'niereba, T'bilisi 1985, (In georgischer Schrift. Zusammenfassung in russischer und französischer Sprache).
• Andreas Groß: Missionare und Kolonisten. Die Basler und die Hermannsburger Mission in Georgien am Beispiel der Kolonie Katharinenfeld. 1818–1870 (= Studien zur orientalischen Kirchengeschichte. Bd. 6). Lit, Hamburg 1998, ISBN 3-8258-3728-9 (Zugleich: Marburg, Universität, Dissertation, 1998).
• Roger Rosen: Georgia. A sovereign country of the Caucasus. Photography by Jeffrey Jay Foxx. Odyssey Publications, Hong Kong 1999, ISBN 962-217-502-3.