Here are the Russian Orthodox saints that start with the letter "L," with their feastdays where possible:
- Larissa and Alla the Martyrs
- Lawrence the Anchorite of the Far Caves, January 20
- Lawrence of Kaluga, August 10
- Lawrence the Recluse of the Far Caves, January 29
- Larissa and Alla the Martyrs
- Lawrence the Anchorite of the Far Caves, January 20
- Lawrence of Kaluga, August 10
- Lawrence the Recluse of the Far Caves, January 29
- Lazarus of Bethany, October 17
- Lazarus the Iconographer, November 17
- Lazar of Serbia, June 15
- Leo the Hermit, July 1
- Leo of Rome
- Leonid of Ustnedumsk, July 17
- Leonida the Martyr
- Leonilla the Martyr
- Leontius the Martyr
- Leonty the Canonarch of the Far Caves, July 18
- Leonty, Patriarch of Jerusalem, May 14
- Leonty of Scythopolis, May 4
- Longin
- Longin the Gatekeeper of the Far Caves, August 15
- Lubov
- Ludmila the Princess
- Lukian of the Far Caves, August 15
- Luke, October 18
- Luke the New Martyr, March 23
- Lydia the Martyr
Source: http://www.gnisios.narod.ru/lives.html