Ko is a boy name. It last appeared in U.S. Social Security records in 2021. Ko first appears in the data in 1985 and reached its peak in 2016 (8 births). The chart below shows how the name has risen and fallen over time.
| Year | U.S. births | Rank |
|---|---|---|
| 2021 | 6 | #23,093 |
| 2020 | 7 | #20,780 |
| 2019 | 5 | #26,595 |
| 2016 | 8 | #19,825 |
| 2015 | 5 | #27,590 |
| 2011 | 5 | #28,287 |
| 2010 | 5 | #28,415 |
| 2008 | 5 | #29,301 |
| 1993 | 5 | #22,161 |
| 1992 | 5 | #21,894 |
| 1991 | 7 | #16,850 |
| 1990 | 7 | #16,713 |
| 1989 | 5 | #20,568 |
| 1988 | 5 | #19,581 |
| 1985 | 5 | #18,184 |