George Clifford "Big George" Armstrong (November 2, 1902 – January 11, 1965) was an American professional baseball pitcher in the Negro Leagues. A right-handed hurler, he was known for his effective curveball and was considered one of the era's prominent pitchers.
Armstrong began his professional career in the early 1920s, first appearing with the Philadelphia Royal Stars in 1920. He joined the New York Lincoln Giants in 1921 before becoming a fixture of the strong Hilldale Daisies (also known as the Hilldales) team from 1922 to 1926. With Hilldale, Armstrong was a key component of the pitching staff, contributing to their success in the Eastern Colored League (ECL). He was a significant player on the Hilldale squad that captured the 1925 Colored World Series championship, defeating the Kansas City Monarchs of the Negro National League.
Following his time with Hilldale, Armstrong played for several other prominent Negro League teams. His career included stints with the Bacharach Giants (1927), Homestead Grays (1930), Philadelphia Stars (1933, 1937), Baltimore Black Sox (1934), New York Black Yankees (1936), and Newark Eagles (1938). His career spanned various iterations of the Negro Leagues, including the Negro National League and the Eastern Colored League.
Armstrong's career statistics, like those of many Negro League players, are not fully complete due to incomplete record-keeping. However, available records indicate a solid career, often showcasing strong win-loss records and respectable earned run averages against top-tier competition. He passed away in his hometown of Philadelphia, Pennsylvania, at the age of 62.