The 2017 Oakland Athletics season was the 50th for the Oakland Athletics franchise in Oakland, as well as the 117th in club history. The A's began the season on April 3 at home against Los Angeles Angels and finished the season at the Texas Rangers on October 1. They finished the season in last place in the American League West and did not make the playoffs for the third consecutive season, but did finish the season on a strong note with a winning record in September.

For the first time in several years, the Coliseum featured the entire baseball configuration. The tarp covering much of the baseball seating was removed, although it remained on Mt. Davis as that section is football-only.

Offseason

October 2016 October 6, 2016Assigned RHP Chris Smith and C Matt McBride outright to Nashville (PCL).October 6, 2016Assigned RHPs Donn Roach, Fernando Rodriguez and J.B. Wendelken, INFs Tyler Ladendorf and Eric Sogard and OF Andrew Lambo outright to Nashville (PCL).October 7, 2016Assigned RHPs Henderson Alvarez and Jarrod Parker and LHP Felix Doubront outright to Nashville (PCL).October 18, 2016Named Chip Hale third base coach, Jeff Collins assistant athletic trainer and Josh Cuffe strength and conditioning coach.October 26, 2016Claimed LHP Giovany Soto off waivers from the Chicago Cubs. Source

November 2016 November 4, 2016Claimed RHP Josh Smith off waivers from Cincinnati.November 7, 2016Announced LHP Giovanny Soto was claimed off waivers by the Chicago White Sox.November 15, 2016Named Ed Sprague coordinator of instruction, Nate Brooks medical coordinator, Ryan Christenson manager and Henry Torres strength and conditioning coach of Nashville (PCL), Fran Riordan manager and Matt Rutledge strength and conditioning coach of Midland (TL), Scott Steinmann manager and Omar Aguilar strength and conditioning coach of Beloit (MWL), J.D. Howell strength and conditioning coach of Vermont (NYP).November 19, 2016Assigned RHP Josh Smith outright to Nashville (PCL). Selected the contracts of RHPs Paul Blackburn and Bobby Wahl, INF Franklin Barreto and OF Jaycob Brugman from Nashville and INF Yairo Munoz from Midland (TL).November 30, 2016Agreed to terms with OF Matt Joyce on a two-year contract. Designated INF Rangel Ravelo for assignment. Source

December 2016 December 2, 2016Agreed to terms with RHP Simon Castro and 3B Jermaine Curtis on minor league contracts.December 2, 2016Assigned INF Rangel Ravelo outright to Nashville. Agreed to terms with 1B Yonder Alonso on a one-year contract.December 23, 2016Agreed to terms with RHP Norge Ruiz on a minor league contract. Source

January 2017 January 4, 2017Agreed to terms with OF Rajai Davis on a one-year contract. Designated INF Max Muncy for assignment.January 4, 2017Named Don Schulze pitching coach of Midland (TL).January 10, 2017Assigned INF/OF Max Muncy outright to Nashville (PCL).January 14, 2017Agreed to terms with RHPs Sonny Gray and Liam Hendriks, and C Stephen Vogt on one-year contracts.January 18, 2017Designated RHP Zach Neal for assignment. Agreed to terms with INF Trevor Plouffe on a one-year contract.January 20, 2017Agreed to terms with RHP Santiago Casilla on a two-year contract and with LHP Ross Detwiler and OF Alejandro De Aza on minor league contracts. Designated OF Brett Eibner for assignment.January 25, 2017Assigned RHP Zach Neal outright to Nashville. Traded OF Brett Eibner to the L.A. Dodgers for INF Jordan Tarsovich. Designated LHP Dillon Overton for assignment. Agreed to terms with INF Adam Rosales on a one-year contract. Source

February 2017 February 1, 2017Agreed to terms with RHP Luis Miguel Romero and OF Enry Pantojas on minor league contracts.February 3, 2017Named Carlos Chavez pitching coach at Beloit (MWL), Bryan Corey pitching coach at Vermont (NYP), Shane Zdebiak athletic trainer at Stockton (Cal), and Ed Gitlitz minor league technology and development manager. Source

March 2017 March 5, 2017Reassigned RHPs Michael Brady, Trey Cochran-Gill, Heath Fillmyer, Tucker Healy, Aaron Kurcz and Josh Smith and LHP A. J. Puk to their minor league camp.March 14, 2017Optioned RHPs Paul Blackburn and Bobby Wahl, INF Yairo Munoz and OF Jaycob Brugman to Nashville (PCL).March 17, 2017Optioned INFs Franklin Barreto and Chad Pinder and OF Matt Olson to Nashville (PCL).March 19, 2017Reassigned RHPs Daniel Gossett and Chris Smith, Cs Matt McBride and Sean Murphy, and INF Max Schrock to their minor league camp.March 26, 2017Optioned RHP Jesse Hahn and C Bruce Maxwell to Nashville (PCL). Announced LHP Ross Detwiler opted out of minor league contract and is a free agent.March 28, 2017Released OF Alejandro De Aza. Source

Spring training The A's participated in the Cactus League during pre-season spring training, finishing with a 16–18 win–loss record and no ties.

Regular season

American League West

American League Wild Card

Record against opponents

Game log

|- style="background:#cfc | 1 || April 3 || Angels || 4–2 || Graveman (1–0) || Nolasco (0–1) || Casilla (1) || 36,067 || 1–0 || W1 |- style="background:#fbb | 2 || April 4 || Angels || 6–7 || Bailey (1–0) || Dull (0–1) || Bedrosian (1) || 11,225 || 1–1 || L1 |- style="background:#fbb | 3 || April 5 || Angels || 0–5 || Ramírez (1–0) || Cotton (0–1) || — || 13,405 || 1–2 || L2 |- style="background:#cfc | 4 || April 6 || Angels || 5–1 || Triggs (1–0) || Skaggs (0–1) || — || 13,292 || 2–2 || W1 |- style="background:#fbb | 5 || April 7 || @ Rangers || 5–10 || Claudio (1–0) || Alcántara (0–1) || — || 34,235 || 2–3 || L1 |- style="background:#cfc | 6 || April 8 || @ Rangers || 6–1 || Graveman (2–0) || Darvish (0–1) || — || 44,410 || 3–3 || W1 |- style="background:#fbb | 7 || April 9 || @ Rangers || 1–8 || Pérez (1–1) || Manaea (0–1) || — || 36,905 || 3–4 || L1 |- style="background:#cfc | 8 || April 10 || @ Royals || 2–0 || Cotton (1–1) || Kennedy (0–2) || Doolittle (1) || 40,019 || 4–4 || W1 |- style="background:#cfc | 9 || April 12 || @ Royals || 8–3 || Triggs (2–0) || Hammel (0–1) || — || 24,380 || 5–4 || W2 |- style="background:#fbb | 10 || April 13 || @ Royals || 1–3 || Vargas (2–0) || Hahn (0–1) || Herrera (1) || 22,160 || 5–5 || L1 |- style="background:#fbb | 11 || April 14 || Astros || 2–7 || Keuchel (2–0) || Madson (0–1) || — || 15,385 || 5–6 || L2 |- style="background:#fbb | 12 || April 15 || Astros || 6–10 || Harris (1–0) || Casilla (0–1) || — || 20,140 || 5–7 || L3 |- style="background:#bbb | — || April 16 || Astros || colspan="9" | Postponed (rain). Rescheduled to September 9. |- style="background:#fbb | 13 || April 17 || Rangers || 0–7 || Griffin (2–0) || Cotton (1–2) || — || 10,406 || 5–8 || L4 |- style="background:#cfc | 14 || April 18 || Rangers || 4–2 || Triggs (3–0) || Darvish (1–2) || Casilla (2) || 12,091 || 6–8 || W1 |- style="background:#cfc | 15 || April 19 || Rangers || 9–1 || Hahn (1–1) || Pérez (1–2) || — || 14,031 || 7–8 || W2 |- style="background:#cfc | 16 || April 20 || Mariners || 9–6 || Dull (1–1) || Scribner (0–2) || — || 10,707 || 8–8 || W3 |- style="background:#cfc | 17 || April 21 || Mariners || 3–1 || Manaea (1–1) || Iwakuma (0–2) || Casilla (3) || 15,255 || 9–8 || W4 |- style="background:#cfc | 18 || April 22 || Mariners || 4–3 || Cotton (2–2) || Miranda (1–2) || Madson (1) || 20,722 || 10–8 || W5 |- style=background:#fbb | 19 || April 23 || Mariners || 1–11 || Gallardo (1–2) || Triggs (3–1) || — || 24,165 || 10–9 || L1 |- style="background:#fbb | 20 || April 25 || @ Angels || 1–2 (11) || Pounders (1–0) || Madson (0–2) || — || 30,124 || 10–10 || L2 |- style="background:#fbb | 21 || April 26 || @ Angels || 5–8 || Shoemaker (1–1) || Manaea (1–2) || Norris (3) || 30,248 || 10–11 || L3 |- style=background:#fbb | 22 || April 27 || @ Angels || 1–2 || Nolasco (2–2) || Graveman (2–1) || Norris (4) || 37,603 || 10–12 || L4 |- style=background:#fbb | 23 || April 28 || @ Astros || 4–9 || Morton (2–2) || Cotton (2–3) || — || 28,472 || 10–13 || L5 |- style=background:#cfc | 24 || April 29 || @ Astros || 2–1 || Triggs (4–1) || Musgrove (1–2) || Casilla (4) || 32,147 || 11–13 || W1 |- style=background:#fbb | 25 || April 30 || @ Astros || 2–7 || Keuchel (5–0) || Hahn (1–2) || Giles (6) || 34,880 || 11–14 || L1

|- style=background:#fbb | 26 || May 2 || @ Twins || 1–9 || Santana (5–0) || Gray (0–1) || — || 18,930 || 11–15 || L1 |- style=background:#fbb | 27 || May 3 || @ Twins || 4–7 || Santiago (3–1) || Graveman (2–2) || – || 18,658 || 11–16 || L2 |- style=background:#cfc | 28 || May 4 || @ Twins || 8–5 || Cotton (3–3) || Gibson (0–4) || Casilla (5) || 19,247 || 12–16 || W1 |- style=background:#fbb | 29 || May 5 || Tigers || 2–7 || Fulmer (3–1) || Triggs (4–2) || — || 17,519 || 12–17 || L1 |- style=background:#cfc | 30 || May 6 || Tigers || 6–5 || Montas (1–0) || Rodríguez (1–3) || — || 16,651 || 13–17 || W1 |- style=background:#cfc | 31 || May 7 || Tigers || 8–6 || Casilla (1–1) || Rodríguez (1–4) ||— || 23,227 || 14–17 || W2 |- style=background:#cfc | 32 || May 8 || Angels || 3–2 ||Hendriks (1–0) || Guerra (2–2) || — || 10,292 || 15–17 || W3 |- style=background:#fbb | 33 || May 9 || Angels || 3–7 || Meyer (1–1) || Cotton (3–4) || Norris (6) || 11,383 || 15–18 || L1 |- style=background:#cfc | 34 || May 10 || Angels || 3–1 ||Triggs (5–2) || Chavez (2–5) || Casilla (6) || 11,061 || 16–18 || W1 |- style=background:#fbb | 35 || May 12 || @ Rangers || 2–5 || Kela (1–1) || Casilla (1–2) || — || 35,625 || 16–19 || L1 |- style=background:#fbb | 36 || May 13 || @ Rangers || 5–6 || Barnette (1–0) || Dull (1–2) || Bush (3) || 37,898 || 16–20 || L2 |- style=background:#fbb | 37 || May 14 || @ Rangers || 4–6 || Álvarez (2–0) || Madson (0–3) || Bush (4) || 35,157 || 16–21 || L3 |- style=background:#fbb | 38 || May 15 || @ Mariners || 5–6 || Gallardo (2–3) || Manaea (1–3) || Zych (1) || 15,431 || 16–22 || L4 |- style=background:#cfc | 39 || May 16 || @ Mariners || 9–6 || Madson (1–3) || Cishek (0–1) || — || 13,955 || 17–22 || W1 |- style=background:#fbb | 40 || May 17 || @ Mariners || 0–4 || Bergman (1–1) || Hahn (1–3) || — || 14,117 || 17–23 || L1 |- style=background:#cfc | 41 || May 18 || Red Sox || 8–3 || Gray (1–1) || Velázquez (0–1) || — || 12,016 || 18–23 || W1 |- style=background:#cfc | 42 || May 19 || Red Sox || 3–2 (10) || Dull (2–2) || Hembree (0–2) || — || 24,728 || 19–23 || W2 |- style=background:#cfc | 43 || May 20 || Red Sox || 8–3 || Manaea (2–3) || Taylor (0–1) || — || 20,235 || 20–23 || W3 |- style=background:#fbb | 44 || May 21 || Red Sox || 3–12 || Rodríguez (3–1) || Triggs (5–3) || — || 20,691 || 20–24 || L1 |- style=background:#fbb | 45 || May 23 || Marlins || 9–11 || Ureña (2–2) || Hahn (1–4) || — || 12,835 || 20–25 || L2 |- style=background:#cfc | 46 || May 24 || Marlins || 4–1 || Gray (2–1) || Vólquez (0–7) || Casilla (7) || 19,738 || 21–25 || W1 |- style=background:#cfc | 47 || May 26 || @ Yankees || 4–1 || Manaea (3–3) || Tanaka (5–4) || — || 39,044 || 22–25 || W2 |- style=background:#fbb | 48 || May 27 || @ Yankees || 2–3 || Sabathia (5–2) || Cotton (3–5) || Betances (5) || 40,218 || 22–26 || L1 |- style=background:#fbb | 49 || May 28 || @ Yankees || 5–9 || Pineda (6–2) || Triggs (5–4) || Warren (1) || 45,232 || 22–27 || L2 |- style=background:#fbb | 50 || May 29 || @ Indians || 3–5 || Carrasco (5–2) || Mengden (0–1) || Allen (14) || 20,792 || 22–28 || L3 |- style=background:#fbb | 51 || May 30 || @ Indians || 4–9 || Bauer (5–4) || Gray (2–2) || — || 14,184 || 22–29 || L4 |- style=background:#cfc | 52 || May 31 || @ Indians || 3–1 || Manaea (4–3) || Clevinger (2–2) || Casilla (7) || 16,784 || 23–29 || W1

|- style=background:#fbb | 53 || June 1 || @ Indians || 0–8 || Kluber (4–2) || Cotton (3–6) || — || 19,767 || 23–30 || L1 |- style=background:#fbb | 54 || June 2 || Nationals || 3–13 || Strasburg (7–1) || Triggs (5–5) || — || 20,813 || 23–31 || L2 |- style=background:#cfc | 55 || June 3 || Nationals || 10–4 || Hendriks (2–0) || Ross (2–2) || — || 23,921 || 24–31 || W1 |- style=background:#fbb