Alfred Herbert MacIlwaine (27 March 1889 – 6 April 1983) was an English international rugby union player.
MacIlwaine was born in Sculcoates, Kingston upon Hull, and attended Clifton College.
[1] A forward, MacIlwaine played his club rugby for Harlequins and Hull & East Riding.
He also featured in services rugby and represented Yorkshire at county level.
[2] MacIlwaine served as an officer with the Royal Field Artillery in World War 1, during which he was decorated with both the Military Cross and Croix de Guerre (with Palm) for gallantry.