Jarník
Jarník or Jarnik called
- a mountain near Písek in the Czech Republic, see Jarník (mountain)
- the Jarník lookout tower there
- the asteroid named after Vojtěch Jarník (4023) Jarník
- a family name
- Jan Urban Jarník (1848–1923), Czech philologist
- Urban Jarnik (1784–1844), Slovenian writer
- Vojtěch Jarník (1897–1970), Czech mathematician
