Arthur Percival Day (10 April 1885 – 22 January 1969) was an English amateur cricketer who played for Kent County Cricket Club during the period of the county's greatest success in the County Championship before World War I.
He played in all four of Kent's Championship winning sides in the pre-war period and scored over 7,000 first-class runs.
He was chosen as one of the Cricketers of the Year in 1910.