All his reforms were dedicated to ensuring Siam's survival in the face of Western colonialism, so that Chulalongkorn earned the epithet Phra Piya Maharat (พระปิยมหาราช, the Great Beloved King).
Semua reformasinya dilakukan untuk keselamatan Siam di tengah kolonialisme Barat, sehingga Chulalongkorn memperoleh julukan Phra Piya Maharaj (พระปิยมหาราช).