The standard Polish form of this name is Helena, however Helen also is used occasionally. Last year (2020) 4 baby girls were given this name, and none got it as a middle name. There also were 242 women with this name in the whole Polish population, and exactly as many had it as their middle name. A Polish Helen could celebrate her name day on one of the days when it's Helena's name day, or possibly Elena's, Eleonora's etc. And use the same nicknames as Helena.
In 2018, 85 is the most common age for an American (U.S.) Helen who is registered female with the Social Security Administration. It is the 105th most common female first name for living U.S. citizens.
― Anonymous User 10/5/2018
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The name is also used in Sweden, Denmark, Norway, Iceland, and Germany. [noted -ed]