James H. Hallinan (May 27, 1849 – October 28, 1879) was an Irish born professional baseball player. In the first professional league season, he played shortstop in five games for the 1871 Fort Wayne Kekiongas. He returned to professional play four years later and worked as a regular player for five teams in four major league seasons, including two as the regular shortstop of the New York Mutuals. Early years Hallinan began his baseball career in with the amateur Aetna Club of Chicago, and played shortstop for four seasons with that club. During that stretch, he played a few professional games for the Fort Wayne Kekiongas of the National Association. Major league career Hallinan did not play professional baseball again until he joined the Westerns of Keokuk, Iowa in . He played every inning of their 13 games at shortstop and, when the Westerns folded, moved on to the New York Mutuals for the remainder of that season and all of 1876, when the Mutuals were a founding member of the National League. His two home runs ranked third in the league. With three in 1875 he had ranked fourth in the NA. The Clipper observed that he, "being remarkably fleet of foot, was often credited with home runs." Jimmy playing sparingly for the Cincinnati Reds in . When the Reds disbanded during business troubles, it looked as if the team was going to fold; he and Charley Jones agreed to sign and play with the Chicago White Stockings. The Reds eventually corrected their situation, and asked for their two players back. The two teams agreed that Jones would return to the Reds while Hallinan would remain with the White Stockings. During July of , Hallinan became too ill to play, which forced him to quit, and although he returned to the field later in August for the Indianapolis Blues, he was only able to participate in three games. Although he was a better than average hitter, he lacked skill in the field. For his career, he hit .287 in 170 games, but in his 111 games at shortstop, he totaled 161 errors for a .744 fielding percentage. He didn't fare much better in his games in the outfield or at second base, as his career total was .756. Early in his career, he spent most of his playing time at shortstop, but he was later moved to the outfield.