Cristina Arámbulo Villanueva Manalo (born February 1, 1937, in Manila, Philippines), popularly known as Ka Tenny Manalo, is the widow of former Iglesia ni Cristo (INC) executive minister Eraño G. Manalo. She stood a loyal wife beside her husband who led the church for over 46 years, from the death of Felix Manalo in 1963 and until the latter's death in 2009. Her eldest son, Eduardo V. Manalo, who was at the time deputy executive minister, assumed the post seven days after his predecessor's demise.