Rising since 2000, #5,399 for boys today.
Popularity of Rocko since 1975
Babies named Rocko per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1970s | 5 |
| 1980s | 0 |
| 1990s | 0 |
| 2000s | 51 |
| 2010s | 139 |
| 2020s | 96 |
Meaning & origin
Rocko is a rare modern name that first appeared in U.S. birth records in 1975, a time when short, punchy names ending in 'o' were gaining appeal. The name saw a modest peak in 2018, though it remains uncommon, with a 2025 rank of 5,399 and a 1 in 100,475 incidence rate. Its trajectory since 2000 has been rising, reflecting a slow but steady increase in interest. Rocko's top states of use are not concentrated enough to report, indicating its scattered popularity. As a variant of Rocky or Rocco, it carries the sturdy imagery of a rock, but no historical or cultural weight. Parents drawn to Rocko typically favor modern, distinctive names that feel casual and strong.
Rocko is a modern variant of Rocky, itself a diminutive of Rocco (of Germanic origin, meaning 'rest') or an English word name evoking strength and stability. The spelling with an 'o' ending reflects a fashionable trend in the late 20th century for names ending in 'o'. It first appeared in U.S. records in 1975 and has seen sporadic use ever since.
Nicknames & variants
Nicknames: Rock
Sibling names for Rocko
Names that share Rocko's style, for a brother or sister.
