Abraham Lincoln Keister (September 10, 1852 – May 26, 1917) was a Republican member of the U.S. House of Representatives from Pennsylvania.

[1][2] Abraham L. Keister was born in Upper Tyrone Township, Pennsylvania.

[3][4] In 1882, he moved to Fayette County, Pennsylvania, where he engaged in the manufacture of coke.

[5][6] In 1901, he organized the Scottdale Savings & Trust Co., and remained connected with this financial institution until his death.

[7][8] Elected as a Republican to the Sixty-third and Sixty-fourth Congresses, he was an unsuccessful candidate for renomination in 1916, and resumed his former business pursuits until he died at his home in Scottdale, Pennsylvania, on May 26, 1917.