|Date of birth||28 December 1942|
|Place of birth||Sanok, Poland|
|Zagłębie Lubin (coach)|
|Moto Jelcz Oława|
|1972||Stal Rzeszów (assistant)|
|1974–1975||Stal Mielec (assistant)|
|1975–1976||Wisła Kraków (assistant)|
|* Senior club appearances and goals counted for the domestic league only. † Appearances (Goals).|
He also was a player, in lower divisions teams, such as Sanoczanka Sanok, Stomil Poznań, Sleza Wrocław, and Moto-Jelcz Olawa. At the age of 28, Lenczyk ended his career as a footballer, and began working as a coach.
At first, he was coached in several teams of southeastern Poland, in 1975 finding a job at Wisła Kraków, where he was assistant. Next year, he became a coach of Wisla's first team, winning Championship of Poland in the 1977/78 season. Furthermore, Lenczyk's Wisla got to the quarter-finals of the 1978–79 European Cup, beating Club Brugge, and Zbrojovka Brno, only to lose to the runner-up, Malmö FF. Lenczyk worked for Wisla for several more seasons (1984–1985, 1994, 2000–2001), and during his last season in Kraków, he won promotion to the second round of UEFA Cup, after eliminating Real Saragossa.
In October 2005, he got a job at GKS Bełchatów. After first, difficult season, his team was Polish runner-up, with such players, as Radosław Matusiak, Pawel Strak, Lukasz Gargula, and Piotr Lech. He was fired in March 2008, after five defeats in a row. On April 16, 2009, he was named head coach of Zaglebie Lubin, winning promotion to the Ekstraklasa. In August 2009, Lenczyk became the coach of Cracovia, replacing Artur Platek. After problems with Cracovia management he came to terms with the higher-ups and dissolve his contract.
On 27 September 2010, he was named the successor for Ryszard Tarasiewicz by Śląsk Wrocław. The team became a runner-up in Polish League in 2010/2011 season. In season 2011/2012 he won the Polish title with Śląsk Wrocław.
- Championship of Poland (1978, 2012),
- Quarter-final of the 1978–79 European Cup,
- Third place in Poland (1979–1980), with Śląsk Wrocław,
- Third place in Poland (1982–1983), with Ruch Chorzów,
- Second place in Poland (2006–2007), with GKS Bełchatów,
- Promotion to Ekstraklasa (2008–2009), with Zaglebie Lubin,
- Second place in Poland (2010–2011), with Śląsk Wrocław,
- Manager of the year 1990 and 2006, according to Pilka Nozna weekly.
- Manager of the season 2010-2011, according to Polish Coaches Association
- GKS Belchatow - manager Orest Lenczyk. Dziennik.pl, July 30, 2006 Retrieved on August 25, 2009
- Orest Lenczyk in Cracovia, press release 2009-08-12 Retrieved on August 25, 2009
- Orest Lenczyk is manager of Zaglebie Lubin. Gazeta Wyborcza Wroclaw, April 16, 2009 Retrieved on August 25, 2009
- Orest Lenczyk became a manager of Śląsk Wrocław On September 27th 2010