May 15
Why this day? Opa is a short form of Opal, and shares its name day.
Opa is celebrated in the United States on May 15.
Opa is a short form of Opal. It keeps its origin (English) and meaning — gemstone; precious stone, and shares its name day, May 15.
On birth records, Opa is rarely written as such: the Opas are Opals (71,009 births). For the name's history, year-by-year popularity and famous bearers, read the Opal page.
Opa is a short form of Opal, which means gemstone; precious stone.
May 15, together with Opal: a short form shares the name day of the name it comes from.
It is a familiar short form. It does not appear as such in birth records, where you find Opal.
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