After entering the Top 200 names for American baby boys in 1920, Lowell peaked at No. 148 in 1931.
Louis fell out of the Top 100 popular American baby boy names in 1960. By 2010, it ranked at No. 342, but rose to No. 289 in 2016
Lothar was most popular in Germany in the 1940s. It ranked as the 37th most popular name of the decade.
5 American males were named Lot in 2015. An equal number were given the 3-letter names Moe and Tab
Lorne was in the Top 1000 American baby boy names from 1961 to 1972, but never made it into the Top 500
Lorenzo has always bounced around the Top 500 most popular American baby boy names. Its highest rank was No.240 in 1880
Lonnie was a consistent Top 200 American baby boy name from 1927 through 1971, with a high rank of No. 135 in 3 consecutive years: 1948, 49 and 50
Logan jumped into the Top 50 American baby boy names in 1996, reaching No. 17 in 2007, 2009 and 2010
Lionel made the Top 300 popular American baby boy twice, in 1933 and 1934, after Lionel Barrymore won the Best Actor in 1932