The baby name Roby appears in baby name data for the United States from 1913 to 2011. It was most popular in 1934 with 46 babies given the name.
In the later years of this period, Roby has become less common than it once was.
| Year | Count |
|---|---|
| 1913 | 10 |
| 1914 | 18 |
| 1915 | 16 |
| 1916 | 29 |
| 1917 | 14 |
| 1918 | 30 |
| 1919 | 43 |
| 1920 | 20 |
| 1921 | 16 |
| 1922 | 23 |
| 1923 | 18 |
| 1924 | 15 |
| 1925 | 30 |
| 1926 | 29 |
| 1927 | 33 |
| 1929 | 21 |
| 1931 | 18 |
| 1932 | 18 |
| 1933 | 15 |
| 1934 | 46 |
| 1935 | 36 |
| 1936 | 36 |
| 1938 | 10 |
| 1939 | 21 |
| 1940 | 27 |
| 1942 | 23 |
| 1943 | 35 |
| 1946 | 23 |
| 1947 | 33 |
| 1948 | 15 |
| 1949 | 7 |
| 1951 | 10 |
| 1954 | 15 |
| 1956 | 7 |
| 1960 | 6 |
| 1963 | 20 |
| 1964 | 26 |
| 1965 | 15 |
| 1969 | 5 |
| 1981 | 5 |
| 1988 | 6 |
| 1990 | 6 |
| 2011 | 10 |