Diary of One Who Disappeared
- Czech title: Zápisník zmizelého
- Author: Leoš Janáček
- Director: Martin Otava
- Costumes and masks: Petra Miškejová
A song cycle for tenor, alto, three female voices and piano written by world famous Czech composer Leoš Janáček. Costumes of this play are based on historical fashion of Janáček’s era.