Temperature dependences of the electrical resistivity, magnetic susceptibility and specific heat of the tetragonal compounds CeCu 2 Sb 2 and CeNi 2 Sb 2 have been studied. The resistivity of both compounds displays a sharp maximum followed by a shallow minimum at higher temperature, indicative of heavy-fermion behavior. The possibility of anomalous low-energy crystalline electric field states is discussed by comparison with other cerium-based 1-2-2 compounds.