Meaning and history
Kiefer is a German surname that means either "pine tree" or "barrel maker."
20062006: 84 births, rank #1,684
2007: 65 births, rank #2,094
2008: 55 births, rank #2,345
2009: 48 births, rank #2,585
2010: 49 births, rank #2,511
20112011: 31 births, rank #3,434
2012: 36 births, rank #3,115
2013: 23 births, rank #4,180
2014: 32 births, rank #3,371
2015: 26 births, rank #3,982
20162016: 21 births, rank #4,624
2017: 17 births, rank #5,297
2018: 12 births, rank #6,703
2019: 9 births, rank #8,215
2020: 10 births, rank #7,502
20212021: 11 births, rank #7,089
2022: no US SSA record for this spelling
2023: 6 births, rank #10,821
2024: 5 births, rank #12,349
20252025: 6 births, rank #10,695
Kiefer rose from #855 to #710 for boys between 1990 and 1991. That year also produced its highest recorded birth count, at 204.