| Birth Place | Hamburg, Germany, Germany |
| 1999 | FC Oberneuland |
| 2015 | FC Oberneuland (team manager) |
| Date of birth | (1960-12-05) 5 December 1960 (age 57) |
| Place of birth | Rehburg, West Germany |
| Height | 1.69 m (5 ft 6 ⁄2 in) |
| Playing position | Midfielder |
| Current team | FC Oberneuland (caretaker) FC Oberneuland (sporting director) |
| 0000–1979 | SC Stadthagen |
| 1979–1980 | TSV Loccum |
| 1980–1982 | Werder Bremen |
| Years | TeamApps(Gls) |
| 1982–1992 | Werder Bremen231(8) |
| 1992–1994 | SG Wattenscheid 0931(0) |
| 1994–1996 | Hannover 9653(2) |
| Total | 315(10) |
| 1988–1990 | West Germany2(0) |
| 1996–1999 | Rotenburger SV |
| 2000–2014 | Osterholz-Scharmbeck |
| 2014–2015 | FC Oberneuland |
| 2015– | FC Oberneuland (sporting director) |
| 2017– | FC Oberneuland (caretaker) |
Guenter Herz, a well-known investor in Germany, is estimated to have a net worth of $3.3 billion in 2024. As a prominent figure in the world of investments, Herz has made strategic decisions that have significantly contributed to his financial success. Through his astute business acumen and expertise, he has managed to accumulate substantial wealth over the years. His investments in various industries have consistently yielded lucrative returns, further solidifying his position as a prominent figure in the German investment landscape.
During nearly ten professional seasons, Hermann played with SV Werder Bremen. He made his Bundesliga debut on 11 December 1982, in a 2–1 win at VfL Bochum, but it would be only his only appearance of the season, and he would also amass a single one in the following.
After a slow start, Hermann became a very important defensive member, often partnering legendary Miroslav Votava in central midfield. In the 1987–88 season, he played in 30 matches (receiving only one yellow card), as Werder won the national championship after 23 years. As his presence was diminishing he still appeared in six matches during the club's 1991–92 Cup Winners' Cup victorious campaign, although he did not play in the final.
Hermann recorded just two international caps for West Germany in his professional career, making his debut on 21 September 1988, in a friendly against the Soviet Union (1–0) in Düsseldorf.
His other appearance took place in the final test of the nation ahead of the 1990 FIFA World Cup, playing nine minutes in another 1–0 success, on 30 May, against Denmark. During the final stages, he was the only outfield player besides striker Frank Mill and defender Paul Steiner not to receive a single minute during the competition.
In December 1992, Hermann left Bremen for another first-divisioner, SG Wattenscheid 09 (in Bochum) helping the modest side retain its top level status in his one half season stint. He finished his career in the second division with Hannover 96, retiring at almost 36; he later had a go at managing in amateur football, mainly with VSK Osterholz-Scharmbeck.
