The eighth month
Derived from the Latin word 'octo' meaning eight, as it was the eighth month in the early Roman calendar. While typically spelled with a 'c' in English, the 'k' spelling reflects the German and Dutch forms of the month name. It is used as a rare seasonal name for children born in the autumn.
Less common today
Oktober isn't in the latest US Top 1000. It last peaked at #9,239 in 2017.
A character in the G.I. Joe universe, specifically a member of the October Guard Β· G.I. Joe
US births per 5-year period, 1990βpresent (SSA data).