Thelliyoor is a village in Mallappally tehsil in district of Pathanamthitta, Kerala, India. As per the data provided by Census of India in 2011, total population of Thelliyoor was 8,101 which includes 3,779 males and 4,322 females. Thelliyoor covers 1015 ha area. Pincode of Thelliyoor is 689544.