| Buskala Creek [Buskali Creek] | |
| A stream in Lawrence County. | Puskala is a Finnish farm name. Buskali Creek, tributary to the North Fork of Rapid Creek from the NW, two miles N of Nahant, was named for H. Buskala, an early settler on this stream. Sneve 1973, p. 166. |
| Buskala Ranch | |
| A locale in Lawrence County. | Puskala is a Finnish farm name. |
| Finlander Spring | |
| A spring in Harding County. | |
| Finn Lateral | |
| A canal in Butte County. | May be of Finnish origin. It is doubtful whether such appellations as Finn Lateral were ever bestowed by Finns. Rather, such names indicating nationality tend to have been given by individuals of other nationalities to identify certain places with the Old World background of their predominant inhabitants. Kaups 1966, p. 387. |
| Harju State Public Shooting Area | |
| A park in Hamlin County. | Harju is a Finnish surname. Harju = ridge. |
| Kallis | |
| In Jerauld County. | Kallis is a Swedish Finnish farm name and surname. Kallis = expensive (in Finnish). Not found in: USGS Geographic Names Information System. Sneve 1973, p. 334. |
| Kari Ranch | |
| A locale in Perkins County. | May be of Finnish origin. Kari is a Finnish male name. Mainly in use after Juhani Aho's novel "Panu" was published in 1897. Kari = shallow. |
| Karinen | |
| A populated place in Harding County. | Karinen is a Finnish surname. Was named for a pioneer Finnish family of that section. Population in 1960 census: 1 person. Source: Sneve 1973, p. 73. |
| Karinen School | |
| A school in Harding County. | May be of Finnish origin. Karinen is a Finnish surname. |
| Lahti Butte | |
| A summit in Harding County. | Lahti is a common surname in Finland. Lahti = bay. |
| Nestor Kivimaki Dam Number 1 | |
| A dam in Butte County. | Kivimäki is a Finnish surname. |
| Niemi Number 1 - 5 Dam | |
| Dams in Harding County. | May be of Finnish origin. Niemi means a tongue of land. Niemi is also a common Finnish surname. |
| Penttila Butte | |
| A summit in Harding County. | Penttila is a common farm name and surname in Finland. |
| Township of Savo | |
| A township in Brown County. | Savo is a county in Finland (Savolax in Swedish). 30 miles N of Aberdeen, is the center of a Finnish settlement but the derivation of the name is unknown. Source: Sneve 1973, p. 122. The largest Finnish farming area in South Dakota where Finns settled in 1882. Source: Ilmonen 1926, p. 203. |
| Savo Cemetery | |
| A cemetery in Township of Savo, Brown County. | Savo is a county in Finland (Savolax in Swedish). |
| Savo Lutheran Church or Finnish Church | |
| A church in Township of Savo, Brown County. | Savo is a county in Finland (Savolax in Swedish). |
| Savo Post Office | |
| A former post office in Brown County. | Savo is a county in Finland (Savolax in Swedish). |