Tadashi as a Baby Name. Meaning and Origin of Tadashi

What is the meaning of the name Tadashi ?

The baby name Tadashi is a Male name , 3 syllables long and is pronounced TAH-dah-shee (IPA: /ta.da.ɕi/).

Tadashi is Japanese in Origin.

Tadashi is a Japanese given name, chiefly masculine, whose meaning depends on the kanji chosen. Frequent writings include 正 or 直 (“correct, upright; straight”), 忠 (“loyal, faithful”), 貞 (“chaste, steadfast”), 禎 (“auspicious”), 善 (“good, virtuous”), and 匡 (“to rectify”). It may also be written in kana as ただし (hiragana) or タダシ (katakana). The form echoes the native adjective tadashii “right, proper,” and the -shi ending is a traditional masculine marker.

The name saw broad use in Japan through the early to mid‑20th century and endures as a steady, traditional choice today. Notable bearers include filmmaker Imai Tadashi and entrepreneur Yanai Tadashi of Uniqlo. Outside Japan it is often shortened to Tad, and alternative romanization systems render it Tadasi. Variants arise primarily from kanji selection and from compound formations beginning Tada‑ (e.g., Tadakatsu), which share related virtues of rectitude and loyalty.