The St. Nicholas Chapel is a historic Russian Orthodox church in Pedro Bay, Alaska, United States, that was built in 1890. It was listed on the National Register of Historic Places in 1980. It is a 15-by-15-foot (4.6 m × 4.6 m) building with an extension at its altar end. It has log walls. In 1973, it was in quite good condition and appeared unaltered from its original 1890 construction. Pedro Bay is in the Lake and Peninsula Borough.