Růžička
Růžička is a Czech surname. Ružička is a Slovak surname. Notable people include:
- Andrea Růžičková, Slovak actress
- Dan Růžička, Czech ice hockey player
- David Růžička, Czech ice hockey player
- Drahomír Josef Růžička, Czech-born American photographer
- František Ružička, Slovak diplomat
- Gayle Ruzicka, American activist
- Hana Růžičková, Czech gymnast
- Helena Růžičková, Czech actress
- Jan Růžička, Czech ice hockey player
- Jiří Růžička, Czech basketball player
- Josef Růžička, Czechoslovak wrestler
- Karel Růžička, Czechoslovak bobsledder
- Karel Růžička , Czech pianist
- Leopold Ružička, Croatian chemist
- Marek Růžička, Czech ice hockey player
- Marie Růžičková, Slovak basketball player
- Marla Ruzicka, American activist-turned-aid worker
- Martin Růžička, Czech ice hockey player
- Martina Růžičková, Czech cyclist
- Miroslav Růžička, Czech sport shooter
- Nils Ruzicka, German record producer
- Peter Ruzicka, German composer
- Peter Ružička, Slovak computer scientist
- Peter Arne Ruzicka, Norwegian businessman
- Rudolf Růžička, Czechoslovak modern pentathlete
- Rudolf Růžička , Czech composer
- Rudolph Ruzicka, Czech-born American illustrator and book designer
- Štefan Ružička, Slovak ice hockey player
- Věra Růžičková, Czech gymnast
- Viktor Růžička, Czech cinematographer
- Vladimír Růžička, Czech ice hockey player and coach
- Vladimír Růžička, Czech ice hockey player
- Werner Ruzicka, German boxer
- Zdeněk Růžička, Czechoslovak gymnast
- Zuzana Růžičková, Czech harpsichordist
- Ruzicka, a Canadian television series
