Popularity (masculine) in Australia (NSW)
Numbers
| Lachlan (masculine) | |||
| Year | Rank | Times Used | |
| 2022 | #25 | 218 | |
| 2021 | #20 | 274 | |
| 2020 | #26 | 239 | |
| 2019 | #32 | 223 | |
| 2018 | #24 | 260 | |
| 2017 | #12 | 341 | |
| 2016 | #11 | 370 | |
| 2015 | #12 | 361 | |
| 2014 | #15 | 375 | |
| 2013 | #8 | 463 | |
| 2012 | #7 | 524 | |
| 2011 | #3 | 590 | |
| 2010 | #6 | 546 | |
| 2009 | #3 | 609 | |
| 2008 | #3 | 678 | |
| 2007 | #4 | 678 | |
| 2006 | #3 | 731 | |
| 2005 | #2 | 781 | |
| 2004 | #3 | 759 | |
| 2003 | #3 | 764 | |
| 2002 | #3 | 841 | |
| 2001 | #3 | 813 | |
| 2000 | #4 | 810 | |
| 1999 | #3 | 920 | |
| 1998 | #3 | 842 | |
| 1997 | #7 | 714 | |
| 1996 | #24 | 483 | |
| 1995 | #24 | 425 | |
| 1994 | #29 | 347 | |
| 1993 | #36 | 294 | |
| 1992 | #39 | 293 | |
| 1991 | #45 | 237 | |
| 1990 | #50 | 201 | |
| 1989 | #51 | 176 | |
| 1988 | #62 | 148 | |
| 1987 | #63 | 124 | |
| 1986 | #66 | 115 | |
| 1985 | #68 | 107 | |
| 1984 | - | - | |
| 1983 | #88 | 83 | |
| 1982 | #93 | 81 | |
| 1981 | - | - | |
| 1980 | - | - | |
| 1979 | - | - | |
| 1978 | - | - | |
| 1977 | - | - | |
| 1976 | - | - | |
| 1975 | - | - | |
| 1974 | - | - | |
| 1973 | - | - | |
| 1972 | - | - | |
| 1971 | - | - | |
| 1970 | - | - | |
| 1969 | - | - | |
| 1968 | - | - | |
| 1967 | - | - | |
| 1966 | - | - | |
| 1965 | - | - | |
| 1964 | - | - | |
| 1963 | - | - | |
| 1962 | - | - | |
| 1961 | - | - | |
| 1960 | - | - | |
| 1959 | - | - | |
| 1958 | - | - | |
| 1957 | - | - | |
| 1956 | - | - | |
| 1955 | - | - | |
| 1954 | - | - | |
| 1953 | - | - | |
| 1952 | - | - | |
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