Steve Menzies, commonly referred to by his nickname "Beaver", is an Australian former professional rugby league footballer best known for his career with the Manly-Warringah Sea Eagles. He also played for the Bradford Bulls and the Catalans Dragons in the Super League. Menzies has spent the majority of his playing career in the second row, but he also played as a centre, five-eighth and as a utility player off the bench.

Steve Menzies was born in Manly, New South Wales, Australia. Menzies is the grandson of Manly-Warringah pioneer Mackie Campbell who had played in the centres in Manly's first ever game in 1947 against Western Suburbs at Manly's long time home ground Brookvale Oval. While attending Narrabeen High School, Menzies played for the Australian Schoolboys team in 1992. His junior club was Harbord United. As a teenager he turned down an offer of $5,000 from Manly's local rivals the North Sydney Bears to later sign with Manly for $9,000 in 1993.

Menzies made his first grade debut for Manly-Warringah against the Brisbane Broncos in Round 13 1993 at Brookvale Oval. Menzies was a member of the Manly sides which won three consecutive minor premierships between 1995 and 1997 and also played in three consecutive grand finals between those years. Menzies won his first premiership with Manly in 1996 as they defeated St George 20-8 in the decider which was played at the Sydney Football Stadium. Menzies scored a try in the match.

Menzies played for Manly-Warringah until the end of 1999 and featured in what was then Manly's last game as a stand-alone entity when they played against St George in Round 26 1999. At the end of 1999, Manly-Warringah controversially merged with arch rivals North Sydney as part of the competitions rationalisation strategy and became the Northern Eagles. Menzies finished as Manly's top try scorer in 1994, 1995, 1996, 1998 and 1999.

Menzies continued into the early 2000s playing for the Northern Eagles and finished as the club's top try scorer in 2002. Menzies played in the Northern Eagles final ever game which was against Penrith in Round 26 2002 which the Northern Eagles lost 68-28 at Brookvale Oval. Menzies scored a try in the defeat. Following the conclusion of the 2002 NRL season, the Northern Eagles were dissolved and the licence was given back to Manly-Warringah. In 2004 Steve Menzies surpassed rugby league and Glebe stalwart Frank Burge's record of 'Most Tries Scored by a second rower' when he scored his 147th try against St George Illawarra. Since then Menzies has gone on to amass a tally of 180 tries in 349 games, both club records at the Manly-Warringah Sea Eagles.

When Manly reached the Grand Final in 2007 Menzies was the sole surviving member of the club's last Grand Final appearance back in 1997. He started in his fourth Grand Final against the Melbourne Storm but the Manly side was unsuccessful in securing the premiership trophy. After speculation on his retirement from rugby league, Menzies announced in October 2007 that he had re-signed with the Manly Sea Eagles for 2008 on a one-year contract, stating that he would likely retire at the conclusion of the 2008 season

After a record-breaking club career with Manly and the Northern Eagles, Menzies had the opportunity to play in another Grand Final - again against Melbourne. Unlike 2007, Manly were the overwhelmingly dominant side, defeating the defending premiers 40-0 - a grand final record. By playing in the 2008 grand final, Menzies equalled Terry Lamb's record of 349 first-grade games. He was one of eight Manly try-scorers on the day and completed his playing-career in Australia with 180 tries - second only to Ken Irvine but first among try-scoring forwards. With less than ten minutes left on the clock, Menzies completed his fairytale by scoring a try with his first touch after coming off the bench for a second time, replacing the injured Steve Matai. His efforts in the Grand Final of 2008 will be entered in Northern Beaches and Rugby League folklore and have earned him legendary status.

Menzies announced in July 2008, that he had agreed to a one-year contract with the Bradford Bulls in the Super League for the 2009 season. Manly was unable to offer Menzies a further contract due to salary cap restraints. Menzies stated he could only continue to play overseas as playing against the club he loves "was not an option".

Menzies extended his contract with the Bradford Bulls until the end of 2010. After being released by Bradford Bulls at the end of the 2010 season, Menzies signed a one-year deal with French club Catalans Dragons. The season started poorly for the side from the south of France, but the Dragons soon became one of the form sides in Super League.

Menzies was a noted defender, but is best known as the most prolific try scoring forward in rugby league. His total of 180 tries is the fourth highest in Australian first grade rugby league history. In total, Menzies has played 520 first grade, state of origin and test games, scoring 251 tries. He is well known for wearing headgear during games, having done so throughout his entire career, as well as his loyalty to the Manly-Warringah Sea Eagles.

Menzies also played 11 tour games (no tests and 4 games from the bench) for Australia on the 1994 Kangaroo tour where he scored 9 tries. During his 20-year career at both club and representative level (not including Kangaroo tour games), Menzies scored at the incredible rate of a try for every 2.05 games he played, or a strike rate of 48.65%.

In February 2014, Menzies temporarily came out of retirement to play for his old club Manly at the inaugural Auckland Nines competition. Menzies became a commentator for Foxsports in 2014 before transitioning into a role on The Matty Johns Show in 2015.