Thomas Devyr (c. 1844 – January 22, 1896) was an American baseball player who played shortstop for the Brooklyn Eckfords during their team's championship seasons of 1862 and 1863.

[1] The family settled into Williamsburg neighborhood of Brooklyn, New York,[2] where the elder Thomas became an influential progressive writer and newspaper editor.

[2] The Devyr family included five sons, and two daughters,[2] and younger Thomas' middle initial has been noted as either an A or an H, depending on the source.

Wansley, Devyr, and a third player Ed Duffy were dismissed from the club, and subsequently banned from playing baseball by a vote of the league members.

The Mutuals were unable to find a suitable replacement at shortstop, so they began to use Devyr during the 1867 season, without consulting the National Association.

[2] Devyr died at his Greenpoint neighborhood home in Brooklyn on January 22, 1896, at the age of 51, and was interred in his family's plot at Mount Olivet Cemetery in Queens, New York.