Ardo is an Estonian variant of the name Artur. As a given name, it is uncommon and largely confined to Estonia, where it reflects the country's linguistic and cultural ties to the broader Nordic and Germanic naming traditions. The name appears in history most notably via the Visigothic king Ardo (or Ardonus), who reigned from approximately 713 to 720/721. According to the sole surviving Visigothic regnal list, Ardo ruled for seven years at a time when the Visigothic kingdom was in terminal decline due to Arab conquests. His domains were likely limited to Septimania (modern-day southern France) and parts of present-day Catalonia, as much of the Iberian Peninsula had fallen under Umayyad control. After 716, Arab forces crossed the Pyrenees and invaded the last Gothic territories, and it is believed that Ardo may have died defending the remnants of his kingdom, possibly at the fall of Narbonne in 720 or 721. However, the Estonian usage of Ardo is disconnected from this historical figure; rather, it follows the standard Estonian pattern of adapting names from European languages, specifically the Germanic-rooted Arthur. The root Arthur has uncertain etymology, possibly derived from Celtic elements such as *artos ('bear') combined with *wiros ('man') or *rīxs ('king'), or alternatively from the Roman family name Artorius. Through the intermediary Artur, which is used in various European languages from Ukrainian to German, the Estonian variant Ardo emerges as a simplified, phonetically adapted form. The name shares features with other Estonian adoptions: it loses the final 'ur' sound in favor of a simpler termination, making it more in line with Estonian phonetic structure. Related forms in other languages include the English diminutives Art and Artie, the Finnish variant Artturi, and the Dutch contraction Tuur. Meaning: Bear, bear-king; Estonian variant of Arthur. Origin: Estonian, ultimately from uncertain Celtic or Roman roots. Type: Given name. Usage regions: Estonia, primarily among younger generations or families seeking international-sounding names. Historical association: Also the name of the last Visigothic king (b. ? – d. 720/721).