The surname Falkenbach originates from the German-speaking regions of Europe, most notably from areas that are part of present-day Germany. The name first emerged during the medieval period, with its roots tracing back to around the 12th or 13th century. The surname is a compound of two German words: "Falken" meaning "falcon" and "Bach" meaning “brook” or “stream.” Thus, the name Falkenbach can be interpreted as "falcon stream," suggesting an association with a place where falcons might be found near a body of water.

The name Falkenbach is derived from geographical features and was likely used to denote families living near such landscapes or designated hunters of falcons, especially around small brooks or streams. Variations of the name can be found in older German manuscripts, including spellings such as Falkinbach and Valkenbach. Historical records suggest that families bearing this name were prominent in certain regions of medieval Germany, including areas like Bavaria and Rhineland.

One of the earliest documented instances of the surname Falkenbach can be found in records from the 14th century. A notable mention is Heinrich Falkenbach, a landowner who was recorded in a 1353 Bavarian legal document concerning land disputes. This early record provides evidence of the surname's roots in the rural nobility of medieval Germany.

In the 15th century, another prominent figure bearing the surname was Johann von Falkenbach, born in 1412 and known to be associated with the Hanseatic League, a commercial confederation of merchant guilds and market towns in northern Europe. Johann played a significant role in trade negotiations and held a respected position within the league.

By the 16th century, the Falkenbach name had spread to various parts of Germany. Georg Falkenbach, born in 1538, was a well-known blacksmith and weapons maker in the region of Thuringia. His high-quality craftsmanship in ironworks garnered him considerable recognition, and tools and weapons bearing his mark were highly sought after.

In the 17th century, Margarethe Falkenbach, born in 1599, gained prominence as an herbalist and healer in the Hessen region. Her extensive knowledge of local plants and their medicinal properties made her an indispensable figure in her community, and several documented cases of her healing practices still exist today.

Another notable figure in the 18th century was Wilhelm Falkenbach, born in 1751. He was a respected Lutheran pastor and theologian in Hamburg. Wilhelm wrote several theological treatises that contributed to the religious and philosophical discourse of his time.

The Falkenbach surname, with its rich history and strong ties to various professions and regions within German-speaking Europe, reflects a family lineage deeply integrated into the cultural and geographical landscape of medieval and early modern Germany.