Marion has been long considered a rising star of the Front National party with support of Southern traditional conservative voters who shy away from the views of her aunt.
Now the 27-year-old has implied she could lead a parliamentary group of Front National MPs if they are voted to serve as the opposition following the French presidential election.
Asked what she saw for her future following the election, Ms Le Pen said: “Why not be in charge of a parliamentary group?”.
It comes after she faced conflict from both Marine Le Pen and party Vice President Florian Philipott
Marion Le Pen in pictures
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The niece of French far-right leader Marine Le Pen has joined the military reserve and has urged "young patriots" to follow in her footsteps, take a look through her career to date,
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French far right Front National (National Front – FN) party's Parliament member and candidate for the regional elections in the Provence-Alpes-Cote d'Azur (PACA)
The “rock star” of the French right-wing went on to say she would run for re-election in the southern Vaucluse region, which she currently represents as one of Front National’s two MPs.
It comes after Ms Le Pen faced conflict from both Marine Le Pen and party Vice President Florian Philipott as her socially conservative views conflict with their nationalist stances.
The two Le Pens have also clashed in the press during the election, with the party leader telling French media her niece would not get a place in her cabinet.
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Last month Marine Le Pen said: “My niece is an MP. I don’t owe her anything.
The two Le Pens have clashed in the press during the election
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Marine Le Pen is a French politician who is the president of the National Front, a national-conservative political party in France and one of its main political forces.
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Described as more democratic and republican than her nationalist father, she has led a movement of "de-demonization of the Front National" to detoxify it and soften its image
“I don’t owe anyone anything. I have no favours to return.”
But the senior Le Pen went on to criticise Marion’s demeanour, claiming she was “rather stiff”.
Speaking about the incident, Ms Le Pen said: “I guess I am stiff and cold then.
“What am I supposed to be — warm and flexible?”
Marion defended her aunt after she claimed her neice would not have a place in her cabinet
Marine's party leadership has seen the group soar in popularity
But Marion went on to defend her aunt, saying it was just part of politics.
Marion Le Pen added: “She felt bad about it.
“She told me she was in a super hostile environment and they had gone after her about me for 25 minutes.
“She did this to preempt any accusation of nepotism.
“It was well-known that I had not requested any ministerial position.”