Lou Unisex

Popularity: #883 · Trend: ↗ Rising

Name Meaning & Origin Pronunciation: loo /luː/

Origin: French; Latin

Meaning: French: light; Latin: renowned warrior

Historical & Cultural Background

The name Lou has its roots in the Latin name "Lucius," which derives from the word "lux," meaning "light." This name evolved through various linguistic stages, transitioning from Latin to Old French as "Luce" and then to Middle English as "Lou." The name is often considered a diminutive or short form of names such as Louise or Louisa, which are feminine forms of Louis, a name of Germanic origin meaning "famous warrior." The evolution of Lou reflects a broader trend in naming practices where shorter forms gain popularity as affectionate or familiar alternatives to longer names. Historically, the name Lou has been associated with several notable figures.

One significant milestone is the use of the name in the context of French royalty, particularly with King Louis IX of France, who was canonized as a saint in the 13th century. His legacy contributed to the enduring popularity of names derived from Louis across various cultures.

Additionally, the name appears in literary works and historical texts, further embedding it in cultural consciousness. The King James Bible, published in the early 17th century, also reflects the influence of names like Louis through its translations and interpretations of biblical figures.

Culturally, Lou carries connotations of light and brightness, aligning with its etymological roots. This symbolism has made it a favored choice in various traditions, often associated with positive attributes such as clarity and enlightenment.

The name's simplicity and elegance have allowed it to resonate across different cultures and eras, maintaining its relevance through time. In some contexts, Lou is affectionately used as a diminutive for names like Louise, which adds to its charm and versatility.

Famous people named Lou

In this section, you will find notable people named Lou. We include individuals across a wide range of fields, including actors known for their work in film, television, and stage productions. You'll also find musicians, directors, and other public figures named Lou who have made a significant impact on popular culture.

We also feature individuals named Lou who have made meaningful contributions to science, politics, athletics, literature, and other areas of public interest.

Please note that not every baby name in our database currently has a famous namesake listed. If you would like to suggest a name we may have missed or submit a correction, feel free to contact us. We review and finalize additions and corrections within 24 hours.

Lou Gehrig is a baseball player best known for his time with the New York Yankees, his consecutive games played streak, and being a two-time MVP.

Lou Reed is a musician best known for his work with The Velvet Underground, and for his solo album Transformer.

Lou Ferrigno is an actor and bodybuilder best known for his role as The Hulk in the television series The Incredible Hulk, and for his appearances in various films and TV shows.

Lou Holtz is a football coach and analyst best known for coaching the University of Notre Dame to a national championship and for his work as a sports commentator.

Lou Costello is a comedian and actor best known for his work in the comedy duo Abbott and Costello, particularly for the routine 'Who's on First?'.

Lou Bega is a musician best known for his hit single 'Mambo No. 5 (A Little Bit of...)'.

Lou Diamond Phillips is an actor best known for his roles in La Bamba, Stand and Deliver, and Young Guns.

Lou Gramm is a musician best known as the lead vocalist of the rock band Foreigner and for hits like 'I Want to Know What Love Is'.

Fictional characters named Lou

The following list of fictional characters named Lou is a work in progress. If you would like to suggest an additional character, please send us the character's name along with a brief, one-sentence description of what they are best known for.

You may also submit corrections, which we will review and update as quickly as possible.

Lou is a fictional character from the animated film Monsters, Inc. He is a friendly and supportive character who helps the main protagonists navigate their challenges.

Sibling suggestions

If you're looking for sibling name ideas that pair well with Lou, the following options are frequently chosen as complementary choices by parents.

LilaLeoLunaLiamLolaLydia

Similar names

Based on our extensive baby names database, several names share stylistic or phonetic similarities with Lou. These names can serve as alternatives to the sibling suggestions listed above and may help you find the perfect complementary name for your growing family.

LunaLilaLucyLolaLenaLuzLottie

U.S. Historical Usage

The name Lou was first seen in the United States in 1880.

Lou has ranked as high as #374 nationally, which occurred in 1954, and has been most popular in Texas, North Carolina, Kentucky, Louisiana, and Mississippi.

In the past 5 years the name Lou has been trending up compared to the previous 5 years.

Popularity Over Time (National)

The name Lou is part of our comprehensive baby names database, which includes Social Security Administration (SSA) data dating back to 1880—the first official year of state and national tracking. The chart below shows when Lou was first recorded in the United States and illustrates how its popularity has risen and fallen over time.

Popularity Over Time (National) — Table

We track the national popularity of each baby name annually. The table below displays each year along with the number of births reported by the Social Security Administration. This data combines all state-level reporting from the SSA's baby names database to provide a comprehensive view of overall birth counts for Lou.

Year Total Births Boy Girl
2025 146 81 65
2024 141 70 71
2023 143 74 69
2022 138 76 62
2021 115 61 54
2020 101 58 43
2019 84 44 40
2018 71 32 39
2017 67 37 30
2016 80 45 35
2015 67 38 29
2014 49 27 22
2013 39 24 15
2012 36 18 18
2011 43 27 16
2010 27 16 11
2009 27 22 5
2008 19 13 6
2007 19 13 6
2006 29 20 9
2005 35 21 14
2004 26 16 10
2003 20 10 10
2002 21 13 8
2001 28 20 8
2000 20 11 9
1999 14 8 6
1998 19 11 8
1997 21 14 7
1996 14 14 0
1995 13 13 0
1994 27 20 7
1993 24 14 10
1992 28 19 9
1991 30 24 6
1990 36 24 12
1989 31 18 13
1988 21 10 11
1987 29 16 13
1986 24 11 13
1985 31 19 12
1984 38 19 19
1983 31 13 18
1982 51 22 29
1981 46 16 30
1980 42 23 19
1979 65 25 40
1978 63 25 38
1977 60 17 43
1976 68 20 48
1975 70 21 49
1974 82 19 63
1973 121 29 92
1972 126 25 101
1971 172 38 134
1970 199 40 159
1969 194 29 165
1968 201 32 169
1967 200 29 171
1966 225 39 186
1965 258 33 225
1964 325 48 277
1963 420 38 382
1962 443 47 396
1961 527 54 473
1960 657 64 593
1959 763 57 706
1958 918 67 851
1957 956 72 884
1956 1,120 54 1,066
1955 1,274 49 1,225
1954 1,547 52 1,495
1953 1,470 36 1,434
1952 609 40 569
1951 495 55 440
1950 445 31 414
1949 476 35 441
1948 478 39 439
1947 566 56 510
1946 525 47 478
1945 447 48 399
1944 501 38 463
1943 495 39 456
1942 583 47 536
1941 545 39 506
1940 533 39 494
1939 549 47 502
1938 562 30 532
1937 565 26 539
1936 532 26 506
1935 551 29 522
1934 583 24 559
1933 572 38 534
1932 585 45 540
1931 503 40 463
1930 496 28 468
1929 502 28 474
1928 469 44 425
1927 526 37 489
1926 446 29 417
1925 436 41 395
1924 418 37 381
1923 378 35 343
1922 390 40 350
1921 348 28 320
1920 369 33 336
1919 334 21 313
1918 402 31 371
1917 383 45 338
1916 347 39 308
1915 316 31 285
1914 265 38 227
1913 216 17 199
1912 234 22 212
1911 162 9 153
1910 162 18 144
1909 140 0 140
1908 162 15 147
1907 136 12 124
1906 100 0 100
1905 156 13 143
1904 124 7 117
1903 144 11 133
1902 127 6 121
1901 103 7 96
1900 153 13 140
1899 138 13 125
1898 166 10 156
1897 127 13 114
1896 140 10 130
1895 134 9 125
1894 130 12 118
1893 147 10 137
1892 146 9 137
1891 117 8 109
1890 141 9 132
1889 137 17 120
1888 179 10 169
1887 157 10 147
1886 138 9 129
1885 148 13 135
1884 156 10 146
1883 153 11 142
1882 141 10 131
1881 129 15 114
1880 145 14 131

Top States for Lou (2024)

We track the most popular states for each baby name every year and highlight the locations where the name appears most frequently. The table below shows the five states with the highest number of births for this name in the selected year. Use the toggle to expand the list to every state with reported births.

State Births Share
NY 14
61%
CA 9
39%