The baby name Lu appears in baby name data for the United States from 1927 to 1975. It was most popular in 1954 with 510 babies given the name.
In the later years of this period, Lu has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1927 | 14 |
| 1928 | 7 |
| 1931 | 5 |
| 1932 | 10 |
| 1933 | 17 |
| 1934 | 6 |
| 1935 | 8 |
| 1937 | 8 |
| 1938 | 5 |
| 1939 | 6 |
| 1941 | 5 |
| 1943 | 10 |
| 1944 | 5 |
| 1945 | 5 |
| 1947 | 10 |
| 1949 | 28 |
| 1950 | 17 |
| 1951 | 8 |
| 1952 | 6 |
| 1953 | 425 |
| 1954 | 510 |
| 1955 | 351 |
| 1956 | 366 |
| 1957 | 262 |
| 1958 | 210 |
| 1959 | 194 |
| 1960 | 180 |
| 1961 | 144 |
| 1962 | 45 |
| 1963 | 62 |
| 1964 | 52 |
| 1966 | 5 |
| 1967 | 10 |
| 1975 | 15 |