BoyPopular now
Saku
Saku (さく) is a Japanese name for boys. Its best-known spelling is 朔, 朔 new moon. It is popular today and has reached No. 6 in 2025.
さ · く · さく · サク
Ways to write Saku
The same sound can be written with different kanji, and each choice changes the meaning. These are the spellings that have appeared in Japan's yearly baby name rankings, most popular first.
朔
朔new moon
Boy, best No. 6 (2018–2025)咲玖
咲to bloom玖black jade, nine
Boy, best No. 84 (2024)朔久
朔new moon久long time
Boy, best No. 92 (2022)Rarer spellings
These spellings of Saku appear in Japanese name records but are uncommon. Each uses a standard reading of its kanji.
佐久to help + long timeGirl
沙空sand + skyGirl
沙紅sand + crimsonGirl
彩玖colour + black jadeGirl
彩空colour + skyGirl
彩紅colour + crimsonGirl
咲to bloomGirl
咲久to bloom + long timeGirl
Popularity in Japan
Where Saku has ranked among the most popular name readings each year. Its best year was 2025, at No. 6.
Show the numbers
| Year | Boys |
|---|---|
| 2025 | No. 13 |
| 2024 | No. 11 |
| 2023 | No. 14 |
| 2022 | No. 23 |
| 2021 | No. 34 |
| 2020 | No. 31 |
| 2019 | No. 46 |
| 2018 | No. 38 |
Source: Meiji Yasuda Life Insurance yearly baby name survey. It covers the top 10 names each year from 1912 to 2003, and the top 100 names and top 50 readings from 2004.