Legacy
During Klitschko's reign as world heavyweight champion, his fights would reportedly draw up to 500 million viewers worldwide. Klitschko has been named multiple times among the 100 highest paid athletes in the world by Forbes: he was ranked 24th in 2012 (Forbes' inaugural list; estimated income $28 million between 1 June 2011 and 1 June 2012), 41st in 2013 ($24 million), 25th in 2014 ($28 million), 63rd in 2015 ($21.5 million) and 98th in 2017. During his active career Klitschko was only omitted from the Forbes' list once, in 2016, despite the fact that he reportedly earned $22.5 million for the fight against Tyson Fury in November 2015 (100th-ranked Buster Posey earned $20.8 million; 85th-ranked Conor McGregor earned $22 million). Wladimir Klitschko's total professional career earnings are estimated to be around €150 million. Known for charity work and philanthropy, Wladimir is one of only 15 current or former living athletes that have been named UNESCO Champions for Sport.
Considered national heroes in Ukraine, in 2008 the Klitschko brothers were voted the 15th greatest Ukrainians of all time following a nation-wide poll that saw around 2.5 million people casting their votes. Boxing fights involving one of the Klitschko brothers regularly attracted between 10 and 20 million viewers in Ukraine; Wladimir's fight against Alexander Povetkin generated even bigger viewership numbers, attracting 23 million viewers. Wladimir has been named multiple times among the 100 most influential people in Ukraine by Korrespondent: he was ranked 95th in 2006, 88th in 2010, 43rd in 2011, 51st in 2012 and 45th in 2013. Forbes named Klitschko the most popular celebrity in Ukraine in 2015, placing him ahead of a singer Svyatoslav Vakarchuk and Kvartal 95 Studio, and ranked him second and third in 2012 and 2013 respectively (the ranking wasn't conducted in 2014). In 2017, Wladimir was honoured with the Order of Liberty, the highest Ukrainian honour that can be awarded to a person of any nationality, for his achievements in sports and contribution to the economical, scientific and cultural development of Ukraine.
The Klitschkos were also considered big stars in Germany. A survey carried out by TNS for the Horizont Sport Business in 2003 showed that 91.7% of Germans recognized Wladimir Klitschko while 70.5% celebrated his successes, making him the fourth most recognized and third most beloved athlete in Germany at the time. According to DW, another research conducted no later than 2011 showed that nearly 99% of people in Germany recognized the Klitschko brothers. The CPI Index conducted by the agency Celebrity Performance in 2012 had the Klitschkos ranked second on the list of the most marketable celebrities in Germany, while in January 2014, based on a survey of 1151 respondents that was conducted by the same agency, the Klitschko brothers were ranked 6th in the "2013 Person of the Year" category. At least four of his fights finished among the top 10 most-watched television broadcasts of the year; the fight against David Haye was the most watched broadcast of 2011 in the 14–49 demographic. Ten of his fights generated over 10 million average viewers, and his world heavyweight title defence against Eddie Chambers in March 2010 drew bigger viewership numbers on RTL than the return from retirement of the Formula One legend, voted the greatest German athlete of the 20th century, Michael Schumacher the same month.
Credited for selling out sports stadiums, Klitschko had eight of his fights take place at sports stadiums in Germany, Switzerland and United Kingdom, with all but one having attendances ranging from 43,000 to 90,000.
During his career, Wladimir defeated 23 boxers for the world heavyweight championship, the most in boxing history. Klitschko holds several historical records, including holding the world heavyweight championship longer than any other boxer in history at 4,382 days (12 years); the most beaten opponents and wins in world heavyweight title bouts since the international expansion of boxing governing bodies, at 23 and 25 respectively; the most wins in unified title bouts and the longest unified championship reign in professional boxing history at 15 title bouts and 14 consecutive defences respectively. He has the second most total successful title defences of any heavyweight boxer with 23 (including his first reign as WBO champion), behind Joe Louis (25) and ahead of Larry Holmes (20) and Muhammad Ali (19) and the third most consecutive title defenses in heavyweight history. Klitschko fought in 29 world heavyweight title fights, more than any other boxer in history.
As of April 2025, BoxRec ranks Wladimir Klitschko as the 69th greatest boxer of all time, pound for pound. According to BoxRec, Klitschko has also defeated 12 previously undefeated fighters with a combined record 267–0–5 (174 KOs) – these 12 included Najee Shaheed (professional record 16–0–1, 8 KOs coming into the fight), Zoran Vujicic (14–0, 6 KOs), Eliseo Castillo (18–0–1, 14 KOs), Samuel Peter (24–0, 21 KOs), Calvin Brock (29–0, 22 KOs), Sultan Ibragimov (22–0–1, 17 KOs), Ruslan Chagaev (25–0–1, 17 KOs), Mariusz Wach (27–0, 15 KOs), Francesco Pianeta (28–0–1, 15 KOs), Alexander Povetkin (26–0, 18 KOs), Kubrat Pulev (20–0, 11 KOs) and Bryant Jennings (19–0, 10 KOs). Wladimir has beaten 9 current or former world champions throughout his career. These included heavyweight champions Chris Byrd (twice), Ray Mercer, Lamon Brewster, Samuel Peter (twice), Sultan Ibragimov, Hasim Rahman and Ruslan Chagaev, two-weight world champion David Haye and unified cruiserweight champion Jean-Marc Mormeck.
Known for his punching power, Klitschko defeated his opponent inside the distance 56 times in 69 fights, an 81% knockout-to-win ratio (this includes two DQs and one TD). Of his thirteen remaining bouts, four involved an opponent that Klitschko knocked out in a rematch (Everett Martin, Chris Byrd, Lamon Brewster, and Samuel Peter), three saw him knock his opponent down multiple times on the way to a wide decision victory (David Haye, Alexander Povetkin, and the first fight against Chris Byrd), two saw Klitschko hurt and knock down his opponent before being knocked out himself (Anthony Joshua and the first fight with Lamon Brewster), and three involved fighters who have never been knocked out by anyone before or after in all of their professional careers (Tyson Fury, Sultan Ibragimov, and Ross Puritty).
Analyzing his legacy, Dan Rafael wrote that Klitschko proved himself to be an all-time great heavyweight, and that his legacy will be viewed more favourably as time passes, comparing him to Lennox Lewis in that regard. Rafael believes that Klitschko's 22-fight winning streak from 2004 to 2015, which included unifying three titles, cemented his legacy among the greatest of all time. Klitschko was criticized for his cautious boxing style, but Rafael argues that a lack of exciting fights is not equal to lack of quality. He also believes that the alleged weakness of the era in which Klitschko competed is overexaggerated, arguing that only two eras in heavyweight boxing, the 1970s and 1990s, could be considered great eras, and that Klitschko's era is no weaker than that of Mike Tyson who made only half as many title defenses as Wladimir did. Despite this, Rafael insists that Wladimir still has a lot of quality opponents on his resume, such as Chris Byrd, David Haye, Alexander Povetkin, Calvin Brock, Sultan Ibragimov and Ruslan Chagaev, and that those wins should not be dismissed due to their one-sided nature; in fact, it only emphasizes the quality of Klitschko's boxing skills and in-ring intelligence. Rafael wrote that even though Klitschko suffered some bad losses, the totality of his career must be considered.
In 2021, Klitschko was inducted into the International Boxing Hall of Fame in his first year of eligibility, having been elected over Miguel Cotto and James Toney by a panel of around 200 international boxing historians.