Certi¯cateless public key cryptography was introduced to solve the key escrow problem in identity based cryptography while enjoying the most attractive cer- ti¯cateless property. In this paper, we present a secure Certi¯cateless encryption (CLE) scheme with short cipher- text. The ciphertext length is at least jmj-bit (the length of a plaintext) shorter than the existing CLE schemes while retaining similar e±ciency of computation. The new scheme is provably secure against adaptive chosen cipher- text attacks in the random oracle model.