Baginski or Bagiński (; feminine: Bagińska; plural: Bagińscy) is a Polish surname. It is a toponymic surname derived from any of the places named Bagno, Bagienice, Bagieńsko, Bagienko.
It appears in multiple languages in various forms. Belarusian and Ukrainian surnames are generally transliterated with an 'h' but may also use a 'g'.
| Language | Masculine | Feminine | |
|---|---|---|---|
| Bagiński | Bagińska | ||
| Belarusian (Romanization) | Belarusian: Багінскі (Bahinski, Baginski) | Belarusian: Багінская (Bahinskaja, Bahinskaya, Baginskaja, Baginskaya) | |
| Baginskienė (married) Baginskaitė (unmarried) | |||
| Romanian/Moldovan | Baghinschi | ||
| Russian (Romanization) | Russian: Багинский (Baginskiy, Baginskii, Baginsky, Baginskij) | Russian: Багинская (Baginskaya, Baginskaia, Baginskaja) | |
| Ukrainian (Romanization) | Ukrainian: Багінський (Bahinskyi, Bahinskyy, Bahinsky, Bahinskyj, Baginskyi, Baginskyy, Baginsky, Baginskyj) | Ukrainian: Багінська (Bahinska, Baginska) | |
| Bagyinszki, Bagyinszky |