The 2013 WNBA season was the 17th season for the Phoenix Mercury of the Women's National Basketball Association.
There were high hopes for the Mercury after they drafted Brittney Griner first overall in the 2013 WNBA draft. However, the Mercury got off to a slow start, and ultimately fired coach Corey Gaines on August 8, 2013, replacing him with Russ Pennell. Amber Cox, the Mercury President and CEO, took over Gaines' GM duties. Pennell helped turn things around, securing the third seed in the 2013 WNBA Playoffs. The Mercury earned a spot in the Western Conference finals against the Minnesota Lynx.
The following are the Mercury's selections in the 2013 WNBA draft.
|- style="background:#cfc;" | 1 | May 19 | Japan | | Brittney Griner (18) | Dupree & Kizer (9) | Samantha Prahalis (8) | US Airways Center<br>4021 | 1–0
|- style="background:#fcc;" | 1 | May 27 | Chicago | | Diana Taurasi (18) | Brittney Griner (8) | Samantha Prahalis (5) | US Airways Center<br>10200 | 0–1
|- style="background:#fcc;" | 2 | June 2 | @ Seattle | | Candice Dupree (18) | Brittney Griner (7) | Charde Houston (6) | Key Arena<br>9686 | 0–2 |- style="background:#fcc;" | 3 | June 6 | @ Minnesota | | Diana Taurasi (21) | DeWanna Bonner (7) | Samantha Prahalis (5) | Target Center<br>8511 | 0–3 |- style="background:#cfc;" | 4 | June 8 | @ Indiana | | Diana Taurasi (26) | DeWanna Bonner (11) | Bonner, Dupree, & Taurasi (5) | Bankers Life Fieldhouse<br>8672 | 1–3 |- style="background:#cfc;" | 5 | June 14 | Los Angeles | | Diana Taurasi (34) | DeWanna Bonner (12) | Diana Taurasi (7) | US Airways Center<br>13065 | 2–3 |- style="background:#cfc;" | 6 | June 16 | @ Tulsa | | Diana Taurasi (29) | Candice Dupree (10) | Diana Taurasi (9) | BOK Center<br>4206 | 3–3 |- style="background:#fcc;" | 7 | June 19 | Minnesota | | Diana Taurasi (28) | Brittney Griner (7) | DeWanna Bonner (5) | US Airways Center<br>8464 | 3–4 |- style="background:#cfc;" | 8 | June 21 | Washington | | Diana Taurasi (31) | DeWanna Bonner (9) | Diana Taurasi (5) | US Airways Center<br>9636 | 4–4 |- style="background:#cfc;" | 9 | June 25 | @ San Antonio | | Brittney Griner (26) | Candice Dupree (12) | Diana Taurasi (8) | AT&T Center<br>9007 | 5–4 |- style="background:#cfc;" | 10 | June 27 | @ Washington | | Diana Taurasi (26) | Candice Dupree (11) | Diana Taurasi (8) | Verizon Center<br>7950 | 6–4 |- style="background:#cfc;" | 11 | June 29 | @ Connecticut | | Bonner & Taurasi (19) | DeWanna Bonner (8) | Diana Taurasi (5) | Mohegan Sun Arena<br>9110 | 7–4
|- style="background:#cfc;" | 12 | July 2 | NY Liberty | | Bonner & Dupree (20) | Bonner & Dupree (7) | Diana Taurasi (10) | US Airways Center<br>7636 | 8–4 |- style="background:#fcc;" | 13 | July 7 | @ Minnesota | | Candice Dupree (12) | Brittney Griner (11) | Diana Taurasi (7) | Target Center<br>9104 | 8–5 |- style="background:#fcc;" | 14 | July 10 | San Antonio | | Candice Dupree (22) | Krystal Thomas (6) | Diana Taurasi (5) | US Airways Center<br>8707 | 8–6 |- style="background:#fcc;" | 15 | July 14 | Los Angeles | | Diana Taurasi (23) | Candice Dupree (8) | Diana Taurasi (5) | US Airways Center<br>8233 | 8–7 |- style="background:#cfc;" | 16 | July 18 | @ Los Angeles | | Diana Taurasi (32) | DeWanna Bonner (11) | Diana Taurasi (6) | Staples Center<br>11105 | 9–7 |- style="background:#fcc;" | 17 | July 21 | Minnesota | | Diana Taurasi (26) | DeWanna Bonner (10) | Diana Taurasi (6) | US Airways Center<br>9806 | 9–8 |- style="background:#fcc;" | 18 | July 24 | @ Minnesota | | Candice Dupree (17) | Krystal Thomas (10) | Alexis Hornbuckle (4) | Target Center<br>16404 | 9–9
|- align="center" |colspan="9" bgcolor="#bbcaff"|All-Star Break |- style="background:#fcc;" | 19 | August 1 | @ Seattle | | DeWanna Bonner (19) | Candice Dupree (10) | DeWanna Bonner (7) | Key Arena<br>6457 | 9–10 |- style="background:#cfc;" | 20 | August 3 | Atlanta | | Diana Taurasi (28) | DeWanna Bonner (6) | Bonner, Dupree, & Taurasi (4) | US Airways Center<br>8138 | 10–10 |- style="background:#fcc;" | 21 | August 6 | Seattle | | Candice Dupree (18) | Candice Dupree (8) | Diana Taurasi (5) | US Airways Center<br>6877 | 10–11 |- style="background:#cfc;" | 22 | August 9 | Tulsa | | Diana Taurasi (23) | Candice Dupree (9) | Taurasi & Hornbuckle (4) | US Airways Center<br>8547 | 11–11 |- style="background:#cfc;" | 23 | August 11 | Tulsa | | DeWanna Bonner (21) | Candice Dupree (7) | Diana Taurasi (7) | US Airways Center<br>5972 | 12–11 |- style="background:#cfc;" | 24 | August 14 | Indiana | | Candice Dupree (16) | Brittney Griner (8) | Diana Taurasi (11) | US Airways Center<br>6135 | 13–11 |- style="background:#fcc;" | 25 | August 17 | @ San Antonio | | Diana Taurasi (23) | Briana Gilbreath (6) | Diana Taurasi (7) | AT&T Center<br>10906 | 13–12 |- style="background:#cfc;" | 26 | August 20 | @ Tulsa | | Diana Taurasi (28) | Dupree & Griner (10) | Diana Taurasi (10) | BOK Center<br>4261 | 14–12 |- style="background:#fcc;" | 27 | August 23 | Seattle | | DeWanna Bonner (20) | Bonner & Griner (5) | Diana Taurasi (7) | US Airways Center<br>8026 | 14–13 |- style="background:#cfc;" | 28 | August 31 | Connecticut | | Bonner & Dupree (22) | Candice Dupree (9) | Diana Taurasi (8) | US Airways Center<br>8119 | 15–13
|- style="background:#cfc;" | 29 | September 6 | San Antonio | | Diana Taurasi (21) | Brittney Griner (14) | Diana Taurasi (7) | US Airways Center<br>9006 | 16–13 |- style="background:#cfc;" | 30 | September 8 | @ Atlanta | | Diana Taurasi (25) | Brittney Griner (11) | Diana Taurasi (6) | Philips Arena<br>9740 | 17–13 |- style="background:#cfc;" | 31 | September 10 | @ NY Liberty | | Bonner & Dupree (18) | Dupree & Taurasi (6) | Diana Taurasi (9) | Prudential Center<br>8127 | 18–13 |- style="background:#fcc;" | 32 | September 11 | @ Chicago | | Candice Dupree (15) | Dupree & Gilbreath (6) | Jasmine James (5) | Allstate Arena<br>6409 | 18–14 |- style="background:#cfc;" | 33 | September 13 | San Antonio | | Diana Taurasi (20) | Krystal Thomas (8) | Diana Taurasi (10) | US Airways Center<br>8899 | 19–14 |- style="background:#fcc;" | 34 | September 15 | @ Los Angeles | | Griner & James (9) | Krystal Thomas (8) | Jasmine James (4) | Staples Center<br>12311 | 19–15
|- style="background:#cfc;" | 1 | September 19 | @ Los Angeles | | Diana Taurasi (30) | Candice Dupree (7) | Diana Taurasi (7) | Staples Center<br>8500 | 1–0 |- style="background:#fcc;" | 2 | September 21 | Los Angeles | | Diana Taurasi (20) | Candice Dupree (9) | Diana Taurasi (5) | US Airways Center<br>11110 | 1–1 |- style="background:#cfc;" | 3 | September 23 | @ Los Angeles | | Candice Dupree (22) | Bonner & Gilbreath (6) | Diana Taurasi (10) | Staples Center<br>9321 | 2–1
|- style="background:#fcc;" | 1 | September 26 | @ Minnesota | | Diana Taurasi (15) | Brittney Griner (6) | Bonner & Dupree (3) | Target Center<br>9013 | 0–1 |- style="background:#fcc;" | 2 | September 29 | Minnesota | | Diana Taurasi (21) | Brittney Griner (10) | Diana Taurasi (6) | US Airways Center<br>8020 | 0–2