Here are the Russian Orthodox saints that begin with the letter "H," with their feastdays:
- Hatzi-George the New Martyr, October 2
- Helen the Empress, May 21
- Herman of Alaska the Wonderworker, December 12
- Herman of Caesarea, November 13
- Hermione, Daughter of Philip the Deacon, September 4
- Hermogenes of Lena, December 19
- Herodion of Lake Ily, September 28
- Hesychius of Jerusalem, March 28
- Hilaria, March 19
- Hilarion the Great, October 21
- Hilarion of the Skhema of the Far Caves, October 21
- Hippolytus, January 30
- Hypatius the Healer of the Far Caves, March 31
Source: http://www.gnisios.narod.ru/lives.html