The 2015 Houston Astros season was the 54th season for the Major League Baseball (MLB) franchise in Houston, Texas, their 51st as the Astros, third in both the American League (AL) and AL West division, and 16th season at Minute Maid Park.
The Astros made the playoffs for the first time since 2005, and the first since moving to the American League. They defeated the New York Yankees in the Wild Card Game before taking the eventual World Series champion Kansas City Royals to five games in the Division Series, nearly pulling off a major upset.
Offseason
11/5/14 – Astros trade C Carlos Perez and RHP Nick Tropeano to the L.A. Angels for C Hank Conger. 12/12/14 – Astros sign free agent RHPs Luke Gregerson and Pat Neshek. 12/15/14 – Astros sign free agent SS Jed Lowrie. 1/14/15 – Astros trade RHP Mike Foltynewicz, 3B Rio Ruiz and RHP Andrew Thurman to the Atlanta Braves for C/OF Evan Gattis and RHP James Hoyt. 1/19/15 – Astros trade CF Dexter Fowler to the Chicago Cubs for 3B Luis Valbuena and RHP Dan Straily. 1/20/15 – Astros sign free agent OF Colby Rasmus.
Spring training
After a five-year gap in contact with the Astros organization, former first baseman Jeff Bagwell accepted a formal invitation from manager A. J. Hinch to be a guest instructor in spring training.
Regular season
Season standings
American League West
American League Wild Card
Record against opponents
Game log
Regular season
|- bgcolor="#bbbfffbbb;" | 1 || April 6 || Indians || 2–0 || Keuchel (1–0) || Kluber (0–1) || Gregerson (1) || 43,753 || 1–0 |- bgcolor="#fffbbbbbb;" | 2 || April 8 || Indians || 0–2 || Carrasco (1–0) || Feldman (0–1) || Allen (1) || 23,078 || 1–1 |- bgcolor="#fffbbbbbb;" | 3 || April 9 || Indians || 1–5 || Bauer (1–0) || Wojciechowski (0–1) || — || 22,593 || 1–2 |- bgcolor="#bbbfffbbb;" | 4 || April 10 || @ Rangers || 5–1 || McHugh (1–0) || Holland (0–1) || — || 48,885 || 2–2 |- bgcolor="#fffbbbbbb;" | 5 || April 11 || @ Rangers || 2–6 || Gallardo (1–1) || Hernández (0–1) || — || 36,833 || 2–3 |- bgcolor="#bbbfffbbb;" | 6 || April 12 || @ Rangers || 6–4 (14) || Harris (1–0) || Verrett (0–1) || Deduno (1) || 35,276 || 3–3 |- bgcolor="#fffbbbbbb;" | 7 || April 13 || Athletics || 1–8 || Kazmir (2–0) || Feldman (0–2) || — || 19,279 || 3–4 |- bgcolor="#fffbbbbbb;" | 8 || April 14 || Athletics || 0–4 || Graveman (1–1) || Peacock (0–1) || — || 18,935 || 3–5 |- bgcolor="#bbbfffbbb;" | 9 || April 15 || Athletics || 6–1 || McHugh (2–0) || Pomeranz (1–1) || — || 19,777 || 4–5 |- bgcolor="#fffbbbbbb;" | 10 || April 17 || Angels || 3–6 || Ramos (1–0) || Qualls (0–1) || Street (4) || 22,660 || 4–6 |- bgcolor="#bbbfffbbb;" | 11 || April 18 || Angels || 4–0 || Keuchel (2–0) || Wilson (1–2) || — || 28,209 || 5–6 |- bgcolor="#bbbfffbbb;" | 12 || April 19 || Angels || 4–3 || Feldman (1–2) || Richards (0–1) || Gregerson (2) || 24,254 || 6–6 |- bgcolor="#bbbfffbbb;" | 13 || April 20 || @ Mariners || 7–5 || Sipp (1–0) || Farquhar (0–1) || Gregerson (3) || 15,129 || 7–6 |- bgcolor="#bbbfffbbb;" | 14 || April 21 || @ Mariners || 6–3 || McHugh (3–0) || Furbush (0–1) || Qualls (1) || 13,949 || 8–6 |- bgcolor="#fffbbbbbb;" | 15 || April 22 || @ Mariners || 2–3 || Happ (1–1) || Hernández (0–2) || Rodney (4) || 14,756 || 8–7 |- bgcolor="#bbbfffbbb;" | 16 || April 24 || @ Athletics || 5–4 (11) || Gregerson (1–0) || O'Flaherty (0–2) || Qualls (2) || 18,205 || 9–7 |- bgcolor="#bbbfffbbb;" | 17 || April 25 || @ Athletics || 9–3 || Feldman (2–2) || Graveman (1–2) || — || 24,342 || 10–7 |- bgcolor="#bbbfffbbb;" | 18 || April 26 || @ Athletics || 7–6 || Sipp (2–0) || Clippard (0–2) || Gregerson (4) || 22,080 || 11–7 |- bgcolor="#bbbfffbbb;" | 19 || April 27 || @ Padres || 9–4 || Neshek (1–0) || Benoit (3–1) || — || 19,532 || 12–7 |- bgcolor="#bbbfffbbb;" | 20 || April 28 || @ Padres || 14–3 || Hernández (1–2) || Ross (1–2) || — || 22,796 || 13–7 |- bgcolor="#bbbfffbbb;" | 21 || April 29 || @ Padres || 7–2 || Keuchel (3–0) || Cashner (1–4) || — || 21,824 || 14–7 |- bgcolor="#bbbfffbbb;" | 22 || April 30 || Mariners || 3–2 (10) || Gregerson (2–0) || Leone (0–2) || — || 19,108 || 15–7 |-