Lyalin
Lyalin is a surname of Slavic origin. It is most commonly found in Russia and other countries within the former Soviet Union.
The name likely derives from a personal name, potentially a diminutive form of a name containing the element "lya" or "lialya." Possible root names include those related to affection or endearment, suggesting the surname may have originated as a nickname that became hereditary. Another possibility is a connection to the word "lyalya," which in some Slavic languages can refer to a doll or baby.
The surname Lyalin is relatively uncommon. Surnames with similar roots or derivations may exist in related languages. The prevalence and distribution of the surname can be researched through genealogical databases and historical records.