The McClelland Trophy is an Australian rules football trophy which, since 2023, has been awarded each year to the combined Champion Club across the Australian Football League (AFL) and AFL Women's (AFLW) home-and-away seasons.
 From 1951 to 2022, the Australian Football League (which was known prior to 1990 as the Victorian Football League) awarded the trophy to the best-performing club in the home-and-away season; until 1990, the Trophy was presented to the club with the highest aggregate points across the three grades of competition that were sanctioned by the VFL/AFL - seniors, Reserves, and Under-19s - with senior wins carrying a higher value.
 In 1991, the AFL announced that the Under-19s competition would be shut down at the end of the season to be replaced with a separate Under-18s competition in Victoria with clubs unaffiliated with the AFL (now known as the Talent League).  From 1991 to 2022, the Trophy was presented to the club that finished the AFL home-and-away season on top of the ladder, thus merging the Trophy with the minor premiership.
 In 2023, the AFL announced that the trophy would henceforth be awarded to the team with the highest aggregate points across both the AFL and AFLW competitions, and that $1 million prize money would be awarded to the winning club, with the prize money being shared equally between the club and its AFL and AFLW players. 
 The Trophy was first awarded in 1951 when it was awarded to Essendon, and the last season it was awarded to the club with the highest aggregate points across the three grades of competition was 1990 when it was awarded to Melbourne (McClelland's original club).
 The first season that the Trophy was awarded to the AFL minor premiers was 1991 when it was awarded to the West Coast Eagles, while the last season it was awarded to the AFL minor premiers was 2022 when it was awarded to Geelong. 
 Teams that win the trophy are given a simplified replica of the middle panel of the perpetual trophy, which features the AFL lettering and a round die-cast of McClelland.
 The award was instituted in 1951 and is named in honour of Dr. William C. McClelland, who at that time had reached 25 years' service as President of the Victorian Football League.  He had previously played 91 games for Melbourne in the VFA in 1894 and in the VFL from 1898-1904, playing in its 1900 premiership team, and captaining the club in 1901-1904. After retiring as a player, he served as a club delegate in 1905-1911, and then as club President from 1912-1926 (when he resigned to become VFL President).
 From 1951-1990, the trophy was  presented to the club with the highest aggregate points across the three levels of VFL/AFL competition: seniors, Reserves and Under-19s. The points system in 1951-1953 had five points being awarded for a win in first grade (seniors), three points for a win in the 'seconds' (Reserves), and one point for a win in the 'thirds' (Under-19s). In the event of a drawn match, each team received half of the points.  
 In 1954, the points system was amended, weighting results slightly more in favour of senior level success and eliminating half-points in drawn matches: seniors wins were now worth ten points, with Reserves wins being worth four points and Under-19s wins being worth two points.
 The 1985 season was the only time that there were joint winners of the McClelland Trophy, with Hawthorn and Carlton both finishing the home-and-away season with 228 points. 
 The Hawks were originally declared the winners via countback,  which separated the two clubs by just 0.5% (or less than five goals) over the course of the entire season.  However, less than a week later, the VFL rescinded this decision after it was discovered that the McClelland Trophy followed the rules of the Brownlow Medal, which had removed its countback system five years earlier: consequently, the Hawks and Blues were declared joint winners. 
 The countback system was used for the McClelland Trophy once, in 1954, after Geelong and Melbourne finished tied on points: Geelong were declared the winners by virtue of having a higher percentage in the seniors.
 In 1957, a unrelated trophy of the same name was struck to reward the best Victorian player in interstate matches played against South Australia. The inaugural winner was Peter Pianto, and evidence of the award being presented continued up until at least 1965, when Footscray defender David Darcy was awarded the trophy.
 With the VFL's interstate expansion from 1987 and rebranding as the AFL, the three-grade format became problematic. While Sydney had continued to field teams in all three grades following the club's relocation from South Melbourne in 1981, Brisbane had fielded a Reserves team from 1989 but not an Under-19s team, whereas WAFL and SANFL officials rejected VFL/AFL proposals for West Coast and Adelaide to field teams in the Reserves and Under-19s.
 Subsequently, the AFL announced that the Under-19s competition would be shut down at the end of the 1991 season, to be replaced with a new Under-18s competition (the TAC Cup) featuring teams that were unaffilated with the AFL clubs, and the McClelland Trophy's criteria were changed: from 1991 to 2022, the Trophy was awarded to the team finishing on top of the AFL ladder at the end of the home-and-away season, thus merging the Trophy with the minor premiership.  
 Despite this change, some newspapers continued to publish cumulative results of the McClelland Trophy across the three grades up until Round 8, while there was notable apathy throughout the league about the award's relevance. In the event, the dissolution of the AFL Under-19s competition confirmed the format change. 
 At the end of the 1999 season, the AFL Reserves competition was shut down, being replaced by alignments with the Victorian Football League and other state leagues, thus completing the league's shift to having each AFL club field one team.
 In March 2023, the AFL Commission announced it had approved a proposal to incorporate the results from the AFL Women's (AFLW) competition into the awarding of the trophy, thus bringing an end to its 1991 format.
 From the 2023 AFL and 2023 AFLW seasons onward, the trophy will be presented to the club with the highest aggregate points across the home-and-away seasons of both competitions, with the winning club also being awarded $1 million prizemoney: $500,000 goes to the winning club, with $250,000 being split between that club's AFL players ($6250 per player), and $250,000 being split between that club's AFLW players ($8333 per player).
 The points system for 2023 has four points being awarded for a win in the AFL home-and-away season, and eight points being awarded for a win in the AFLW home-and-away season (adjusted to reflect the AFLW's shorter season length). In the event of a drawn match, each team receives half of the points. The points system will be reviewed each year, based on changes in season length.
 In the event that two or more clubs are tied on aggregate points at the conclusion of both seasons, the club with the highest percentage over both the AFL and AFLW will win the trophy.
 The trophy is a perpetual shield that is kept at AFL House. The original trophy features McClelland's head embossed in bronze on the centre of five panels of wood, where the names of each winning club is inscribed over the years.  Clubs also receive a smaller one-panel replica of the trophy.  When the trophy evolved into the Champion Club Trophy in 2023, the trophy itself was redesigned entirely. The new design consists of a glass plate in the shape of a typical Australian rules football, it also includes the logos of both the AFL and AFLW competitions in the centre, on the side of the panel it is inscribed the words Dr. WM C McClelland Trophy. On the base plate it also includes name of the winning club. The new trophy was presented at the AFLW Awards night in 2023.
 The award has been relatively low-key, with no prize money until 2023, although in recent seasons there had been a private presentation to clubs released in video format on websites. 
 Prior to 1991, there was no trophy for the team that qualified for the finals in first position as minor premiers, even though winning the minor premiership did come with some prestige: finishing on first on the ladder at the end of the home-and-away season ensures an advantageous draw in the AFL finals series, and is also part of the official records. 
 In April 2018, following a proposal by then-AFL Commission boss Richard Goyder to boost the significance of the McClelland Trophy and recognise the achievement of finishing on top of the ladder, AFL chief executive officer Gillon McLachlan agreed to consider introducing prize money alongside the award for the 2019 season and beyond. However, monetary winnings were not introduced until 2023.
 Melbourne won the inaugural McClelland Trophy contested under this format in 2023.