|Date of birth||5 February 1994|
|Place of birth||Cuxhaven, Germany|
|Height||1.75 m (5 ft 9 in)|
|2010||Hamburger SV II||1||(0)|
* Senior club appearances and goals counted for the domestic league only and correct as of 31 October 2019 (UTC)|
‡ National team caps and goals correct as of 10 November 2018
Petermann started her club career at Hamburger SV. In 2013, she moved to the USA to play college football (soccer) for the UCF Knights in Florida, were in her first year she was named the Conference rookie of the year.
After a successful campaign with Germany women's national under-20 football team at the 2014 U-20 Women's World Cup she had an opportunity and decided to move back to Germany to pursue a professional career, by joining SC Freiburg.
She also played for Germany women's national under-20 football team and was part of the winning team of the 2014 FIFA U-20 Women's World Cup where she scored three goals. The first was in a 2–0 victory against the United States at the group stage, she scored the first goal of that match. Her second goal came during the semifinal against France, with the scores at 1-1 and France dominating the match, she scored the winning goal (2–1) at the 81st minute. Her third goal was the title winning goal during the 1–0 triumph over Nigeria, scored at the 98th minute during the match extra-time.
Petermann made her debut for the senior German team on 6 March 2015 at the Algarve Cup against China. She was part of the German squad of the 2015 FIFA Women's World Cup in Canada, where she scored her first two goals for Germany, both came at the group stage 4–0 win match against Thailand.
Scores and results list Germany's goal tally first:
|Petermann – goals for Germany|
|1.||15 June 2015||Winnipeg, Canada||Thailand||2–0||4–0||2015 FIFA Women's World Cup|
|3.||16 September 2016||Khimki, Russia||Russia||4–0||4–0||UEFA Women's Euro 2017 qualifying|
|4.||22 October 2016||Regensburg, Germany||Austria||4–2||4–2||Friendly|
|5.||10 November 2018||Osnabrück, Germany||Italy||4–2||5–2|
- Germany U20
- "Germany U20 star Lena Petermann playing at Florida college". edmontonsun.com. 1 August 2014. Retrieved 25 August 2015.
- "Petermann Leaves UCF Women's Soccer". UCF Knights. 1 September 2014. Retrieved 25 August 2015.
- "SC Freiburg brings Lena Petermann" (in German). womensoccer.de. 2 September 2014. Retrieved 25 August 2015.
- "Torment for Leupolz as France edge out Germany". UEFA. 28 July 2011. Retrieved 25 August 2015.
- "Lena Petermann profile". FIFA. Retrieved 25 August 2015.
- "Sweet revenge as Germany down USA". FIFA. 6 August 2014. Retrieved 25 August 2015.
- "Petermann: The goal was simply indescribable". FIFA. 6 August 2014. Retrieved 25 August 2015.
- "Germany break French hearts". FIFA. 21 August 2014. Retrieved 25 August 2015.
- "Germany edge Nigeria to take the trophy". FIFA. 25 August 2014. Retrieved 25 August 2015.
- "Petermann: I can't grasp what's happened". FIFA. 25 August 2014. Retrieved 25 August 2015.
- "Lena Petermann profile" (in German). DFB. Retrieved 25 August 2015.
- "List of Players - 2015 FIFA Women's World Cup" (PDF). FIFA. Retrieved 25 August 2015.
- "Players Info Petermann Goals". DFB. Retrieved 3 February 2014.