The 1955 Colorado State Bears baseball team represented Colorado State College of Education in the 1955 NCAA baseball season. The Bears played their home games at Jackson Field. The team was coached by Pete Butler in his 13th year at Colorado State.
The Bears won the District VII playoff to advance to the College World Series, where they were defeated by the Arizona Wildcats.
! style="" | Regular season |- valign="top"
|- align="center" bgcolor="#ccffcc" | 1 || April 1à|| at || Unknown ⢠Golden, Colorado || 11âÂÂ2 || 1âÂÂ0 || 1âÂÂ0 |- align="center" bgcolor="#ccffcc" | 2 || April 2à|| Colorado Mines || Jackson Field ⢠Greeley, Colorado || 8âÂÂ0 || 2âÂÂ0 || 2âÂÂ0 |- align="center" bgcolor="#ccffcc" | 3 || April 8à|| || Jackson Field ⢠Greeley, Colorado || 11âÂÂ4 || 3âÂÂ0 || 2âÂÂ0 |- align="center" bgcolor="#ccffcc" | 4 || April 9à|| at Colorado A&M || Colorado Field ⢠Fort Collins, Colorado || 5âÂÂ4 || 4âÂÂ0 || 2âÂÂ0 |- align="center" bgcolor="#ccffcc" | 5 || April 15à|| || Jackson Field ⢠Greeley, Colorado || 9âÂÂ7 || 5âÂÂ0 || 3âÂÂ0 |- align="center" bgcolor="#ccffcc" | 6 || April 16à|| Colorado College || Jackson Field ⢠Greeley, Colorado || 10âÂÂ0 || 6âÂÂ0 || 4âÂÂ0 |- align="center" bgcolor="#ccffcc" | 7 || April 19à|| Warren Air Force Base || Jackson Field ⢠Greeley, Colorado || 7âÂÂ1 || 7âÂÂ0 || 4âÂÂ0 |- align="center" bgcolor="#ccffcc" | 8 || April 22à|| at || Unknown ⢠Laramie, Wyoming || 15âÂÂ4 || 8âÂÂ0 || 4âÂÂ0 |- align="center" bgcolor="#ccffcc" | 9 || April 23à|| Wyoming || Jackson Field ⢠Greeley, Colorado || 9âÂÂ7 || 9âÂÂ0 || 4âÂÂ0 |- align="center" bgcolor="#ccffcc" | 10 || April 26à|| || Jackson Field ⢠Greeley, Colorado || 10âÂÂ6 || 10âÂÂ0 || 4âÂÂ0 |- align="center" bgcolor="#ccffcc" | 11 || April 29à|| at Colorado Mines || Unknown ⢠Golden, Colorado || 13âÂÂ8 || 11âÂÂ0 || 5âÂÂ0 |- align="center" bgcolor="#ccffcc" | 12 || April 30à|| Colorado Mines || Jackson Field ⢠Greeley, Colorado || 5âÂÂ3 || 12âÂÂ0 || 6âÂÂ0 |-
|- align="center" bgcolor="#ccffcc" | 13 || May 3à|| Warren Air Force Base || Jackson Field ⢠Greeley, Colorado || 13âÂÂ0 || 13âÂÂ0 || 5âÂÂ0 |- align="center" bgcolor="#ccffcc" | 14 || May 6à|| at || Unknown ⢠Gunnison, Colorado || 16âÂÂ3 || 14âÂÂ0 || 6âÂÂ0 |- align="center" bgcolor="#ccffcc" | 15 || May 7à|| at Western State || Unknown ⢠Gunnison, Colorado || 12âÂÂ2 || 15âÂÂ0 || 8âÂÂ0 |- align="center" bgcolor="#ccffcc" | 16 || May 10à|| Fort Carson || Jackson Field ⢠Greeley, Colorado || 7âÂÂ4 || 16âÂÂ0 || 8âÂÂ0 |- align="center" bgcolor="#ccffcc" | 17 || May 13à|| at Colorado College || Stewart Field ⢠Colorado Springs, Colorado || 14âÂÂ9 || 17âÂÂ0 || 9âÂÂ0 |- align="center" bgcolor="#ccffcc" | 18 || May 14à|| at Colorado College || Stewart Field ⢠Colorado Springs, Colorado || 19âÂÂ4 || 18âÂÂ0 || 10âÂÂ0 |- align="center" bgcolor="#ccffcc" | 19 || May 17à|| at Denver || Unknown ⢠Denver, Colorado || 10âÂÂ5 || 19âÂÂ0 || 10âÂÂ0 |- align="center" bgcolor="#ccffcc" | 20 || May 20à|| at Fitzsimons Army Medical Center || Unknown ⢠Aurora, Colorado || 13âÂÂ0 || 20âÂÂ0 || 10âÂÂ0 |- align="center" bgcolor="#ccffcc" | 21 || May 21à|| at Fitzsimons Army Medical Center || Unknown ⢠Aurora, Colorado || 9âÂÂ0 || 21âÂÂ0 || 10âÂÂ0 |- align="center" bgcolor="#ffcccc" | 22 || May 24à|| Warren Air Force Base || Jackson Field ⢠Greeley, Colorado || 2âÂÂ5 || 21âÂÂ1 || 10âÂÂ0 |- align="center" bgcolor="#ccffcc" | 23 || May 27à|| Fort Carson || Jackson Field ⢠Greeley, Colorado || 25âÂÂ7 || 22âÂÂ1 || 10âÂÂ0 |-
|- |- ! style="" | Postseason |- valign="top"
|- align="center" bgcolor="#ccffcc" | 24 || June à|| Wyoming || Jackson Field ⢠Greeley, Colorado || 17âÂÂ6 || 23âÂÂ1 || 10âÂÂ0 |- align="center" bgcolor="#ffcccc" | 25 || June à|| Wyoming || Jackson Field ⢠Greeley, Colorado || 7âÂÂ13 || 23âÂÂ2 || 10âÂÂ0 |- align="center" bgcolor="#ccffcc" | 26 || June à|| Wyoming || Jackson Field ⢠Greeley, Colorado || 12âÂÂ5 || 24âÂÂ2 || 10âÂÂ0 |-
|- align="center" bgcolor="#ccffcc" | 27 || June 10 || vs Southern California || Omaha Municipal Stadium ⢠Omaha, Nebraska || 2âÂÂ1 || 25âÂÂ2 || 10âÂÂ10 |- align="center" bgcolor="#ffcccc" | 28 || June 11 || vs Wake Forest || Omaha Municipal Stadium ⢠Omaha, Nebraska || 0âÂÂ10 || 25âÂÂ3 || 10âÂÂ0 |- align="center" bgcolor="#ffcccc" | 29 || June 12 || vs Arizona || Omaha Municipal Stadium ⢠Omaha, Nebraska || 0âÂÂ20 || 25âÂÂ4 || 10âÂÂ0 |-