Ward started his career in the Bradford City youth setup before he was snapped up by West Yorkshire rivals Leeds United, but he turned down a new deal at Leeds to join Premier League side Bolton Wanderers. Leeds received compensation as a result of Ward leaving. Danny made his senior debut for Bolton as a substitute in the club's 0–1 home Premier League defeat to Sunderland on 15 August 2009. On 26 November 2009, he signed for Swindon Town on a one-month loan deal and on 28 December 2009 he scored his first professional goal for Swindon Town in the 46th minute in a 3–1 home win over Yeovil Town. On 7 September 2010, Ward signed a new three-year contract with Bolton and three days later signed on a three-month loan deal with Coventry City. He made his debut for them in the home game against Leicester Citythe day after. The loan was cut short on 15 October as Ward returned to Bolton for an operation on his groin which kept him out of the game until the following March.
After recovering from his injury, Ward was sent on loan to Football League One side Huddersfield Town on 15 March 2011, for the remainder of the season. He made his debut as a substitute in the 1–0 win over Brentford at Griffin Park on the same day. He scored his first goal, which was the winner to make it 3–2, for Huddersfield against Brighton & Hove Albion on 30 April 2011, which also happened to be the last goal scored at the Withdean Stadium, before going on to score twice in the final league game of the season in the 4–4 home draw with Brentford. Ward scored in the League One play-off semi-final second-leg against A.F.C. Bournemouth. The match was 3–3 after 120 minutes, but Huddersfield won on penalties 4–2, which included Ward scoring his, qualifying Huddersfield for the final at Old Trafford where they just came short of promotion losing 3–0 in the final against Peterborough United.
2011–12 season
On 11 July 2011, Ward signed a three-year contract at Huddersfield Town. The fee was around £1 million. He made his second début for the Terriers in their 1–1 draw against Bury, at the Galpharm Stadium, on 6 August 2011. He scored his first goal the week after in the 2–2 away draw to Rochdale. Ward finished the season with 47 appearances in all competitions scoring five times four league goals, he also made 39 appearances in the league as Huddersfield finished the season as Play-off champions winning promotion to the Championship after beating Sheffield United 8–7 on penalties in the Wembley final.
2012–13 season
Ward started his first game of the 2012–13 season in Huddersfield's 1–0 away defeat at Preston North End in the Football League Cup when he was substituted in the 46th minute. first league game came in Huddersfield's first home game of the coming on as an 81st-minute substitute in Huddersfield's 1–1 home draw with Nottingham Forest on 21 August 2012. Ward's first league start didn't come until 1 September in a 2–2 away draw at Ipswich Town, his first goal came in the next match at home to Derby County when he scored the only goal of the 1–0 game after just 47 seconds on 15 September2012.
On 9 January 2015, Ward moved on loan to Rotherham United on a 28-day emergency loan, with a view to a permanent deal. On 12 January 2015, it was confirmed that Ward had made a permanent deal with the Millers for an undisclosed fee. Rotherham escaped relegation during 2015–16 season. The following season, Ward was one of the highlights in a poor season as Rotherham were relegated, which led to attraction from other clubs. Ward finished the club's top goalscorers with 12 goals to his name, and his contract was extended by a further year at the end of the season.
Cardiff City
During the 2017 summer transfer window, Rotherham accepted a £1.6 million plus add-ons bid from Cardiff City for Ward, completing the move on 23 June 2017, signing a three-year deal that will last until the summer of 2020. He made his debut for the club on the opening day of the 2017–18 season, during a 1–0 victory over Burton Albion as a substitute in place of Junior Hoilett. Ward scored his first goal for the club at Fulham in a 1–1 draw, on 9 September. Following an injury to Kenneth Zohore, Ward saw a successful run in the starting line up scoring three in six games, one of which was nominated for the EFL Goal of the Month, before surgery ruled him out for up 3 months. Cardiff were promoted to the Premier League at the end of the season. Ward made his return in the opening game of the following season, a 2–0 loss at Bournemouth. He scored his first Premier League goal in a 2–3 defeat to Arsenal on 2 September 2018. Cardiff, however, were eventually relegated as Ward endured an injury hit season managing to make 16 appearances in total. Ward missed the first month of the 2019-20 Championship season through injury, making his comeback in a 1–0 victory over Middlesbrough, followed by his first goal of the season at Hull City in a 2–2 draw. This was followed by a brace at West Bromwich Albion on 5 October.
