Pierre Njanka Beaka (born March 15, 1975) is a Cameroonian football player who, as of 2004 was playing for CS Sedan Ardennes.

Njanka played for Cameroon at the 1998 and 2002 World Cups, as well as the 2004 African Nations Cup. He has been capped over 50 times for his country. Njanka has been with Sedan since 2003, having previously played with RC Strasbourg.