Rocko
#5,565 in 2025Boys' nameMeaning not yet documented
Rocko has been given to 291 babies in the U.S. since 1975. In 2025 it ranked #5,565 of 13,926 boys’ names in use. Its peak year was 2014, with 22 recorded.
Babies named Rocko, 2025
1 in 195,000
Rocko over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Rocko?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 195,000
- 17 of 3,315,165 births
- Among boys only
- 1 in 100,000
- <0.01% of boys
- Rank, 2025
- #5,565
- of 13,926 boys’ names in use
- Coin-flip room size
- 135,172 kids
- Even odds of a second one
Where Rocko sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 135,172 children born in 2025 and it's an even bet that one of them is another Rocko. In a class of 30 the chance is Under 1%.
When Rockos were born
Half of everyone ever recorded as Rocko was born before 2016 — so the typical Rocko is around 9 today.
- Biggest decade
- 2010s
- 47.8% of all use
- Born in the last 25 years
- 98.3%
- A modern name
- Recorded since 1950
- 291
- People you could plausibly meet
2010s — 47.8% of all recorded uses (139).
Is Rocko rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- +2,081
- Places climbed
- Rank vs 5 years ago
- −571
- Places dropped
- Rank vs 10 years ago
- +369
- Places climbed
- Births vs 10 years ago
- 1.13×
- More babies than then
- Share of its own peak
- 77.3%
- Peak was 2014 (22)
- Years since peak
- 11
- Years
- Year-to-year steadiness
- Volatile
- 41.8% average annual change
Spellings of Rocko
Rocko is not the most common spelling — Ricky is, with 47.9% against Rocko's 0.06%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Where Rocko is used
Across 1910–2025, Rocko was most concentrated in California — about 1 in — boys, against 1 in 1,089,544 across all states with data.
Most concentrated
- 1California1 in —
Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Rocko has too little recent state data to map, so this covers all years from 1910.
Rocko around the world
Where Rocko ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- England & Wales2007–2024#4,271in 2024
- South Australia2013–2013#754in 2013
Popularity data from Office for National Statistics and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. CBS SA data under CC BY 4.0.
Rocko by the numbers
The raw record for each sex the name is used for.
Names similar to Rocko
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Rocko
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.