Speakers at the event next week include Momentum’s Jewish founder, Jon Lansman, and Jewish Labour activist Rhea Wolfson, who is hoping to be elected to the party’s National Executive Committee.
Momentum supporters criticised the advert and asked organisers to change the image, Guido Fawkes reported.
Mr Lansman told the website that he believed the photograph had been chosen “to illustrate a contemporary form of antisemitism, rather than endorse it”.
In a statement, Lewisham Momentum said: “Sure it is offensive, it isn’t very edifying… That’s the point of using such a photo that was taken on a protest that many of us were involved in.
“The discussion has to be had and we have to challenge ideas in our movement if we are to move forward and develop an understanding of different and specific kinds of oppression and racism.”