| skos:altLabel | - see below
- ''Osa'' class
- ''Osa'' missile boats
- ''Osa''-class
- ''Osa''-class missile boat
- ''Osa''-class missile boats
- OSA-II
- Osa
- Osa (Soju)-class missile boats
- Osa I class
- Osa I-class
- Osa I/II-class
- Osa II
- Osa II-class
- Osa II-class PFM missile boats
- Osa II-class missile boat
- Osa class
- Osa missile boats
- Osa-I
- Osa-I-class missile boats
- Osa-II
- Osa-II class
- Osa-class
- Project 205
- Project 205 (Osa I class) missile boats
- Project 205 Moskit
- Soju class
- Soviet missile boat
- \"''Osa''-class
- missile boats class Osa
- missile ships
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