Warn is a boy name. It last appeared in U.S. Social Security records in 1926. Warn first appears in the data in 1920 and reached its peak in 1922 (11 births). The chart below shows how the name has risen and fallen over time.
| Year | U.S. births | Rank |
|---|---|---|
| 1926 | 5 | #9,003 |
| 1925 | 5 | #9,124 |
| 1923 | 6 | #8,141 |
| 1922 | 11 | #5,473 |
| 1921 | 8 | #6,828 |
| 1920 | 6 | #8,323 |