Arnold Morley (18 February 1849 – 16 January 1916) was a British barrister and Liberal politician.

[citation needed] Morley was elected Member of Parliament for Nottingham at a by-election in 1880, and held the seat until the constituency was divided for the 1885 general election.

[2] He served under William Ewart Gladstone as Parliamentary Secretary to the Treasury (chief government whip) between February and July 1886, and was then chief Liberal whip from 1886 to 1892 during the party's stay in opposition.

When the Liberals returned to power under Gladstone in August 1892, Morley was sworn of the Privy Council[3] and appointed Postmaster General,[4] with a seat in the cabinet.

He retained this post until 1895, the last year under the premiership of the Earl of Rosebery.