Ivan Loos (March 23, 1878 – February 23, 1956) was a 5'6 American Major League Baseball pitcher, who had a right hand throw. He played for the Philadelphia Athletics during the 1901 season.
Pete Loos
| Given name: | Ivan Loos |
| Nicknames: | None |
| Primary Pos: | Pitcher |
| Hght/Wght: | 5'9" / 178 lbs |
| Bats/Throws: | None / R |
| Born: | Mar 23, 1878 in Philadelphia, PA |
| Died: | Feb 23, 1956 in Darby, PA (77 years old) |
| Debut: | May 2, 1901 |