Arnold Sommerling (23 July 1898 Tallinn – 5 December 1924 Nehatu Parish, Harju County) was an Estonian Communist politician.
He was a member of I Riigikogu, representing the Central Committee of Tallinn Trade Unions.
On 28 March 1922, he resigned his position, and he was replaced by Jaak Jakobson.
He came back to Estonia illegally in 1924, and participated in the preparations of the 1924 Estonian coup d'état attempt.
After the failure of the coup attempt, Sommerling was shot by Estonian police officers on 5 December 1924, while resisting arrest.