Geiser
A German surname that likely began as a nickname, occupational name, or regional name tied to a medieval word for a spirited or lively person, or to a place name.
The #8,443 most common surname in the United States (2010 Census) — about 1 in every 78,923 Americans shares it.
Etymology
Geiser is a surname of German origin, but its exact derivation is not settled. It is often explained as either a form related to German dialect words for something lively, forceful, or boisterous, or as a surname built from a place name or older personal name now hard to trace. In some cases it may also reflect a spelling variant influenced by regional pronunciation and later standardization.
History
The surname appears in German-speaking areas and was carried to North America by immigrants, especially in the 18th and 19th centuries. In the United States it is relatively uncommon and is found more often in families of German or Swiss-German background. Modern bearers may share the surname through several unrelated family lines, since similar spellings can arise from more than one local source.
Origin
Regions
Variant spellings
Fun fact
Because German surnames were often stabilized only after families moved or clerks recorded them, Geiser can appear in several spellings even within the same extended family.