Sidak
#13,604 in 2025UnisexBoys' nameGirls' nameMeaning not yet documented
Sidak has been given to 88 babies in the U.S. since 2010. In 2025 it ranked #13,604 of 13,926 boys’ names in use. Its peak year was 2011, with 8 recorded. It's used for both sexes: 53% boys, 47% girls all-time.
Babies named Sidak, 2025
1 in 663,000
Sidak 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
Girls or boys — Sidak over time
In 2025, Sidak went to 81% girls and 19% boys.
A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.
How common is Sidak?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 663,000
- 5 of 3,315,165 births
- Among boys only
- 1 in 342,000
- <0.01% of boys
- Rank, 2025
- #13,604
- of 13,926 boys’ names in use
- Coin-flip room size
- 459,581 kids
- Even odds of a second one
Where Sidak 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 459,581 children born in 2025 and it's an even bet that one of them is another Sidak. In a class of 30 the chance is Under 1%.
When Sidaks were born
Half of everyone ever recorded as Sidak was born before 2016 — so the typical Sidak is around 9 today.
- Biggest decade
- 2010s
- 63.8% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 47
- People you could plausibly meet
2010s — 63.8% of all recorded uses (30).
Is Sidak 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
- —
- Not ranked then
- Rank vs 5 years ago
- New entry
- Not ranked then
- Rank vs 10 years ago
- —
- Not ranked then
- Births vs 10 years ago
- —
- Not published both years
- Share of its own peak
- 62.5%
- Peak was 2011 (8)
- Years since peak
- 14
- Years
- Year-to-year steadiness
- Volatile
- 29.0% average annual change
Spellings of Sidak
Sidak is not the most common spelling — Aidan is, with 56.9% against Sidak's 0.02%.
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 Sidak is used — girls
Across 1910–2025, Sidak was most concentrated in California — about 1 in — girls, against 1 in 762,513 across all states with data.
Most concentrated
- 1California1 in —
Shading is the share of that state's recorded girls 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. Sidak has too little recent state data to map, so this covers all years from 1910.
Sidak around the world
Where Sidak 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 & Wales2021–2021#4,789in 2021
- Canada2012–2024#1,071in 2024
- South Australia2012–2012#771in 2012
Popularity data from Office for National Statistics, Statistics Canada and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. StatCan data under Statistics Canada Open Licence. CBS SA data under CC BY 4.0.
Sidak by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Sidak
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Sidak
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.