One of the dumbest ideas ever on Facebook is that friends can automatically add you to groups. I'm not sure why Facebook thinks that giving friends the power to add you to any group out there is a good idea, but the feature is there and it is actively used. So, if you ever wanted to create a I'm the Greatest group and invite all your friends to it, then this is your chance to do just that. Your friends will be automatically added to the new group, and it is up to them to either try and get out of the group again or participate in it. It is not really clear why they are not sending out invitations instead, which would give every friend the choice to either join the new group or ignore the invite to not join the group. It is apparently only possible to invite friends into new Facebook groups. If you visit an old group page on Facebook you will see the following paragraph at the top. Over the next few months, Facebook will be archiving all groups created using the old groups format. When this group is archived, its wall posts, photos and discussion threads will move to the new groups format, but group members will need to be re-added. The new Group page it links to offers little information about the new group concept on Facebook. It is only possible to automatically add friends to new groups on Facebook. The old concept was to send friends invitations if you wanted them to join a group on Facebook. The new group concept is obviously flawed, considering that the majority of Facebook users are not only friends with their closest friends and relatives, but with many different users of the social networking site. This may open the door for spam or even malicious attacks in form of phishing links or software downloads. It does not necessarily have to go that far, but being a member of a group that you do not want to be part of may be be reason enough to be against the new group concept. How can you stop people from adding you to Facebook Groups automatically? The short answer is, you cannot. The only option you have is to leave the group and contact the friend to let them know that you do not want to be part of the group. If you get re-added, your only option is to leave again and / or remove the friend who has added you from the friend list. Here is how you leave groups. Click on Groups on your Facebook profile page. The groups link is located near the top right corner of the page. There you see a list of all groups that you are a member of. To leave a group, hover your mouse cursor over the group. A blue x is displayed next to the group. Click on the x to leave the group. You will get a remove group membership confirmation prompt. Select Remove if you are sure and want to leave the selected group on Facebook. Have you been added by friends to groups automatically? How have you handled this? Update: Some users think that this article is misleading, as it is not answering the question they came here for. Here are several options that users in the comments have pointed out: You cannot be re-added to groups if you leave them, so this might help. Update: Facebook displays a check box nowadays that you need to check to avoid being added to the group again. Check the "prevent other members from adding you back to this Group" box before you hit the leave group button. You can create or subscribe to a lot of bogus / empty groups to reach the group limit. Once you do you cannot be added anymore to new groups. And finally: Communicate with those friends that add you to group ans see if you can get them to stop adding you to groups. If you cannot, you should consider unfriending then on Facebook as they cannot add you to groups if they are no longer your friend. There you have it. Three perfectly fine answers for the issue at hand. It would obviously be better if Facebook would give users an option to accept or decline group invites, but since that is not an option right now, your only bets are the options listed above.