Algirdas is a Lithuanian masculine given name, possibly meaning "all-hearing", from the Lithuanian roots al- ("all, every") and gird- ("to hear"). It is notably the name of a 14th-century Grand Duke of Lithuania.EtymologyThe name is commonly interpreted as combining al-, a form of alli meaning "all, every", with girdeti (derived from girdu "to hear"). Thus, Algirdas can be understood to mean "he who hears all" or "all-hearing", possibly implying wisdom or omniscience. Lithuanian names often incorporate such bardic prefixes and roots drawn from nature and attributes. A diminutive form is Algis, and a Polonized variant is Olgierd.Historical SignificanceAlgirdas (c. 1296 – May 1377) was one of the most prominent rulers of the Grand Duchy of Lithuania, reigning from 1345 until his death. He was a son of Grand Duke Gediminas and succeeded his brother Jaunutis in power alongside his brother Kęstutis, with whom he ruled in a de facto diarchy. Algirdas expanded the Grand Duchy into a vast empire spanning from the Baltic Sea to the Black Sea, and his campaigns bordered within 80 kilometers of Moscow. His title, also known in Latin as rex Letwinorum (King of the Lithuanians), reflects the sovereignty he asserted even amid ongoing conflict with the Teutonic Order and the rising influence of the Grand Principality of Moscow. During his rule, he supported Orthodox Eastern Christianity in the east while remaining pagan, contributing to Lithuania evolving into a multi-ethnic, multi-cultural state.Cultural and Religious ContextAlgirdas’ name and legacy are enshrined in Lithuanian history as an age of expansion, strength, and the founding of the Gediminid dynasty’s lasting influence. Despite a pagan origin, the name survived centuries of Christianization and is still used in modern Lithuania. The Polish form Olgierd brought it into Belarusian and Ukrainian cultures due to the historical union of Poland and Lithuania. Today, Algirdas evokes pride for Lithuanian heritage, popular heroism, and wisdom.Meaning: "All-hearing" (Old Lithuanian origins, incorporating al- “all” and gird- “to hear”)Origin: LithuanianType: First nameUsage: Mainly in Lithuania, but forms such as Algis and Olgierd persist in Poland and BelarusNotable Bearers: Grand Duke Algirdas of Lithuania (14th century)