Minor Ellis played
minor hockey throughout Ontario, beginning with a club from
Belmont, Ontario, at age four. Joining the
Cambridge Hawks at the midget level, he won an Ontario Alliance championship with the club in 2007.
Junior Ellis was selected in the second round, 22nd overall, by the
Windsor Spitfires in the 2007
Ontario Hockey League (OHL) Draft. In the 2008 playoffs, Ellis added five points in five games along with Spitfires teammate
Taylor Hall. Ellis was further recognized for his academic performance, maintaining an 81 percent average in university preparation courses at
St. Anne Catholic High School in
Belle River, earning him the League's
Bobby Smith Trophy as scholastic player of the year. He received the award over fellow nominee
Steven Stamkos of the Sting, who had won it the previous year. He earned the distinction twice more over the course of the campaign in February and March 2009. On November 3, he was chosen as OHL Player of the Week, having scored seven points in the previous two games. Ellis his second such distinction on April 20, 2009, registering two goals and five assists in three games. During the season, he represented the OHL in the 2008
ADT Canada-Russia Challenge. He also competed for the Western Conference at the 2009 OHL All-Star Classic and participated in the 2009
CHL Top Prospects Game. Improving to 22 goals, 67 assists and 89 points in 57 games in 2008–09, Ellis led all OHL defencemen and finished second in team scoring to
Taylor Hall. He ranked first in the league in assists, seventh in points and second in
plus-minus rating (+52). As a result, Ellis was named to the OHL First All-Star Team and awarded the
Max Kaminsky Trophy, beating fellow nominees
P. K. Subban and
Cameron Gaunce as the League's top defenceman. Ellis was additionally voted the smartest player, hardest shot and best offensive defenceman in the Western Conference in an annual poll of OHL coaches. Windsor entered the 2009 OHL playoffs as the top-ranked team in the OHL West. Ellis added 31 points in 20 games, tying for third in post-season scoring while helping the Spitfires to a
J. Ross Robertson Cup as OHL champions. Earning a berth in the
2009 Memorial Cup, the Spitfires went on to win the national major junior championship over the
Kelowna Rockets. Ellis recorded four points in six games to be named to the Tournament All-Star Team. He was selected in the first round, 11th overall, by the
Nashville Predators. Standing at 5 feet and 9 inches (1.75 metres), he was considered small for a defenceman. As a result, he missed ten games with the Spitfires, making his season debut in early-November. Struggling offensively upon recovering, he focused on improving his defensive and physical play. and was named to the OHL Second All-Star Team. Windsor beat the
Barrie Colts in the OHL Finals before defeating the
Brandon Wheat Kings 9–1 in the Memorial Cup Final. Ellis recorded three assists in the national championship game. Upon his return to Windsor, he was named team captain. During the month, he surpassed
Joel Quenneville as the Spitfires' all-time leading scorer among defencemen. He scored the game-winning goal in overtime against the
London Knights on November 10 for his record-setting 230th career point with Windsor. Ellis was honoured in a
pre-game ceremony on November 26 for the feat; the game that night against the
Oshawa Generals was billed as "Ryan Ellis Night." He completed the season with 313 points all-time. His single-season total of 100 points (24 goals and 76 assists) established a career-high while leading all OHL defencemen by a 21-point margin. It was the first time in over 17 years that an OHL defenceman scored 100 points in a season. Among all OHL skaters, he ranked fifth overall. After winning his second Max Kaminsky Trophy and first
Red Tilson Trophy as the OHL's most outstanding defenceman and player, respectively, he was further distinguished as
CHL Defenceman and
Player of the Year. Ellis beat out
Simon Després and
Stefan Elliott for the former recognition, while being voted over
Sean Couturier and
Darcy Kuemper for the latter. It was the first time a player won both awards since
Bryan Fogarty did so 22 years prior. Upon joining the Admirals, he immediately made an impact by tallying his first assist 10 minutes and 30 seconds into Game 1 of the West Division Finals. He later tallied his first professional goal in his sixth playoff game to stave off elimination and force a Game 7. Prior to the start of the
2011–12 season, Ellis participated in the 2011 Florida Rookie Tournament where he led all team defensemen with two points. He played in five of Nashville's 2011 preseason contests, posting one assist and a +3 rating, before being assigned to the AHL for the
2011–12 season. Ellis immediately continued his production from the playoffs and tallied two assists in his first regular season AHL game. By mid-November, Ellis had accumulated three goals and five assists for eight points through 12 games. He also maintained a five game point streak from November 13 to 26. He improved to four goals and eight assists for 15 points by December 9. Later that month, he was tied for first among rookie defencemen and ninth among all AHL defencemen with 17 points through 26 games. As a result of his AHL success, Ellis was recalled to the NHL level on December 26. He played 13:37 minutes of ice time in his debut that night and was minus-one with two shots on goal against the
Detroit Red Wings. His play also earned him a selection to the 2012 AHL All-Star Game In his fifth career NHL game on January 7, Ellis recorded his first NHL point on
Patric Hornqvist’s second period power-play goal. Later that game, he tallied his first career NHL goal in the third period to help the Predators defeat the
Carolina Hurricanes. Through his first 12 games at the NHL level, Ellis accumulated two goals and four assists for six points and a plus-4 rating. As he began earning the trust of head coach
Barry Trotz, Ellis also saw time on the second power-play unit with
Roman Josi. After being named a healthy scratch for one game, Ellis returned to the Predators lineup on February 15 and quickly tallied a goal and an assist for his third multi-point game of the season. He played in 22 games with the Predators, tallying three goals and six assists, before being re-assigned to the AHL on February 24. He posted one assist over three games before being recalled to the NHL level on February 27. As the Predators qualified for the
2012 Stanley Cup playoffs, Ellis made his postseason debut in Game 3 of the Western Conference Quarterfinals against the Detroit Red Wings. Although he remained pointless over the three games he played, the Predators beat the Red Wings and met with the
Chicago Blackhawks. After participating in the Predators 2012 training camp, Ellis was re-assigned to their AHL affiliate for the
2012–13 season. However, he was unable to play until November 23, 2012, due to a broken wrist. He quickly accumulated two goals and seven assists for nine points through 20 games before the
2012–13 NHL lockout concluded. Once the lockout ended, Ellis participated in the Predators training camp and was named to their opening night roster for the shortened 2012–13 season. Ellis immediately tallied two points through his first two games but struggled to produce points as the season continued. After only accumulating two goals and four assists over 31 games, Ellis was re-assigned to the Admirals on March 25. He finished the NHL season with two goals and six points in 32 games. Prior to the start of the 2013–14 season, the Predators hired
Phil Housley as their assistant coach in part to help Ellis and the other young defencemen improve their game. During the Predators 2013 training camp, head coach Barry Trotz stated that although he felt Ellis was pressing too hard in the previous season, he saw the defenseman was more determined entering the 2013–14 season. Through his first four preseason games, Ellis accumulated one assist and an even
plus-minus rating. Through the first 10 games of the season, Ellis averaged 10 minutes per game and saw his ice time increase once defencemen
Roman Josi suffered an injury in late October. By December, Ellis had accumulated one goal and nine points through 34 games and spent time on the Predators' second power-play unit. His scoring began to pick up in January and the following months saw him hit numerous personal milestones. His 42-game scoring drought came to an end on January 15 after he tallied a goal and an assist in the third period to lead the Predators to a 4–2 win over the
Calgary Flames. By the end of January, Ellis had maintained a plus-4 rating while accumulating a career-best 13 assists and 16 points. Although he often played as a bottom defenceman, Ellis averaged 14:27 per game in time on ice while also manning the second power-play unit with rookie
Seth Jones. After the Predators acquired
Michael Del Zotto, Ellis began playing with
Mattias Ekholm on the third pairing while Jones played with Del Zotto on the second. Prior to Trotz's firing, Ellis began logging close to 20 minutes a night in March and April and his minutes continued to grow under new head coach
Peter Laviolette. He finished the 2013–14 season with six goals and 21 assists through 80 games, although he remained unsigned as a restricted free agent. As the Predators failed to qualify for the
2014 Stanley Cup playoffs, Ellis was named to Team Canada's senior team for the
2014 IIHF World Championship. Following the 2014 IIHF World Championship, Ellis and the Predators had yet to come to a contract agreement. As such, Ellis began skating with his junior team, the Windsor Spitfires, to stay in shape. The organization eventually signed Ellis to a five-year, $12.5 million contract on September 26. Despite missing time at training camp, Ellis began the
2014–15 season strong. On October 22, he recorded a career-high three points and scored the game-winning shootout goal to lead the Predators over the
Arizona Coyotes. On August 14, 2018, the Predators re-signed Ellis to an eight-year, $50 million dollar contract extension with a $6.25 million dollar salary starting in the 2019–20 season.
Philadelphia Flyers On July 17, 2021, Ellis was traded to the
Philadelphia Flyers in exchange for
Philippe Myers and
Nolan Patrick, who was then traded to the
Vegas Golden Knights for forward
Cody Glass. Ellis played four games until November 13 after he suffered a "multilayered" issue involving the "complex of the whole pelvic region." Although he was expected to be ready for the
2022–23 season, Flyers general manager
Chuck Fletcher described the injury as possibly career-ending.
Post-injury years In October 2025, Ellis' contract was traded to the
San Jose Sharks alongside a conditional sixth-round pick in
2026 in exchange for
Carl Grundstrom and
Artem Guryev. Several months later, on January 8, 2026, his contract was traded to the
Chicago Blackhawks, alongside
Jake Furlong and a fourth-round pick in
2028, in exchange for
Nolan Allan,
Laurent Brossoit, and a seventh-round pick in 2028. ==International play==