Siemomysł
A Slavic name that means "thinking of one's family". It's about as rare as they come: no boys were given it last year, and most Poles have never met one.
Siemomysł Pronunciation
Siemomysł is pronounced she-MO-mihsw (/ɕɛˈmɔmɨsw/).
What Siemomysł means
Where Siemomysł comes from and what it has meant to the people who carry it.
Siemomysł binds two old Slavic roots. The first, siemo-, traces back to a word for kin or household, the same family sense kept in the old form siemia. The second, -mysł, comes from the verb myśleć, to think. Read together, the name means thinking of one's family, in Polish myślący o rodzinie.
The name belongs to the earliest Piast story. In the chronicle of Gallus Anonymus, written around 1113, Siemomysł appears as the father of Mieszko I, the duke who led Poland into Latin Christendom. A second Siemomysł, a duke of Kuyavia, held real power in the thirteenth century. The name reaches from legend into documented record.
One variant travels beside it. Ziemomysł shifts the first root toward ziemia, meaning land, a slip that sounds natural to a Polish ear. On a school register today the name would stand out at once. What stays fixed under both spellings is the second half, mysł, the old word for thought.
How many people are named Siemomysł
1 in 10673094 men in Poland is named Siemomysł. 2 people carry it in the 2025 register: rank #61147 among male names.
Siemomysł as a middle name
Siemomysł is a first name for 2 men in Poland and a middle name for another 4, a 33/67 split. In the men's middle-name ranking it sits 5781st, between Sidik (4) and Siraj (4).
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#5779 Siddharth4
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#5780 Sidik4
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#5781 Siemomysł4
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#5782 Siraj4
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#5783 Sisira4