The baby name Nan appears in baby name data for the United States from 1910 to 1978. It was most popular in 1955 with 258 babies given the name.
In the later years of this period, Nan has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1910 | 40 |
| 1911 | 19 |
| 1912 | 23 |
| 1913 | 32 |
| 1914 | 37 |
| 1915 | 50 |
| 1916 | 82 |
| 1917 | 80 |
| 1918 | 58 |
| 1919 | 52 |
| 1920 | 70 |
| 1921 | 68 |
| 1922 | 46 |
| 1923 | 80 |
| 1924 | 86 |
| 1925 | 112 |
| 1926 | 119 |
| 1927 | 95 |
| 1928 | 157 |
| 1929 | 149 |
| 1930 | 141 |
| 1931 | 94 |
| 1932 | 87 |
| 1933 | 144 |
| 1934 | 152 |
| 1935 | 166 |
| 1936 | 115 |
| 1937 | 111 |
| 1938 | 99 |
| 1939 | 202 |
| 1940 | 174 |
| 1941 | 118 |
| 1942 | 185 |
| 1943 | 209 |
| 1944 | 114 |
| 1945 | 119 |
| 1946 | 190 |
| 1947 | 207 |
| 1948 | 168 |
| 1949 | 192 |
| 1950 | 171 |
| 1951 | 254 |
| 1952 | 232 |
| 1953 | 201 |
| 1954 | 196 |
| 1955 | 258 |
| 1956 | 181 |
| 1957 | 208 |
| 1958 | 229 |
| 1959 | 191 |
| 1960 | 158 |
| 1961 | 110 |
| 1962 | 73 |
| 1963 | 88 |
| 1964 | 33 |
| 1965 | 10 |
| 1966 | 17 |
| 1978 | 5 |