Krinau

Infobox Swiss town
subject_name = Krinau
municipality_name = Krinau
municipality_type = Gemeinde
imagepath_coa = |pixel_coa=


languages = German
canton = St. Gallen
iso-code-region = CH-SG
district = Wahlkreis Toggenburg
lat_d=47|lat_m=20|lat_NS=N|long_d=9|long_m=03|long_EW=E
postal_code = 9622
municipality_code = 3373
area = 7.23
elevation = 803|elevation_description=
population = 288|populationof = January 2004 | popofyear = 2004
website = www.krinau.ch
mayor = |mayor_asof=|mayor_party=
mayor_title = |list_of_mayors =
places =
demonym =
neighboring_municipalities= Bütschwil, Mosnang, Wattwil
twintowns = |

Krinau is a municipality in the "Wahlkreis" (constituency) of Toggenburg in the canton of St. Gallen in Switzerland.

With a population of 288 (as of December 2002), it is the smallest municipality in the canton. The area is 7.24 km². It is a scenic farming village in Toggenburg.