Rainer comes from the German / Germanic tradition, meaning Army Counsel.
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How popular is Rainer?
2018peak year
Rainer has settled into a steady rhythm — neither rising sharply nor fading, holding a consistent place in U.S. birth records. It currently ranks well outside the top 1,000 (around #2814), with about 46 babies named Rainer each year. In 2018, 53 babies received the name (ranked #2464). Total registrations across all years since 1880: roughly 1,241.
Year-by-year registrations1880–2024 · U.S. Social Security data
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