Date of Birth: 
About Cosmas Silei
- Cosmas Silei (born 10 September 1948) is a Kenyan former middle distance runner who competed in the 1972 Summer Olympics.
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See Also
- Famous People's Birthdays on 10 September, Kenya
- Famous People's Birthdays in September, Kenya
- Famous middle-distance runner's Birthdays on 10 September, Kenya
- Famous middle-distance runner's Birthdays in September, Kenya
- Famous hurdler's Birthdays on 10 September, Kenya
- Famous hurdler's Birthdays in September, Kenya