Zo is a rare variant of Zoe that peaked in 2017 and has grown less common since.
Zo is predominantly a girl name. In 2025 it ranked #14,930 among girls (6) and #10,686 among boys (7) — overall #14,304 across all names. The charts below show girls and boys separately.
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 13 | 13 | #14,930 | #10,686 |
| 2024 | 13 | 13 | #12,154 | #14,282 |
| 2023 | 32 | 32 | #7,244 | #5,925 |
| 2022 | 42 | 42 | #5,171 | #5,871 |
| 2021 | 32 | 32 | #5,236 | #10,793 |
| 2020 | 47 | 47 | #3,913 | #8,063 |
| 2019 | 43 | 43 | #4,258 | #8,878 |
| 2018 | 32 | 32 | #5,151 | #12,145 |
| 2017 | 49 | 49 | #3,847 | #8,835 |
| 2016 | 24 | 24 | #6,900 | #12,175 |
| 2015 | 14 | 14 | #8,440 | — |
| 2014 | 16 | 16 | #10,124 | #14,072 |
| 2013 | 8 | 8 | #13,136 | — |
| 2012 | 10 | 10 | #11,249 | — |
| 2011 | 6 | 6 | #16,745 | — |
| 2010 | 6 | 6 | #16,974 | — |
| 2005 | 7 | 7 | #14,496 | — |
| 2004 | 6 | 6 | #16,089 | — |
| 2000 | 5 | 5 | — | #12,118 |
| 1957 | 6 | — | #6,083 | — |