General assemblies (GA) were the primary decision making bodies of the global Occupy Movement which arose in 2011. Open to all who wished to take part, general assemblies allowed for an inclusive form of direct democracy. Such assemblies aimed to establish a consensus among all participants.

Assemblies were primarily voice based with different speakers addressing the crowd in turn. The specific forms adopted by the Occupy assemblies vary across the world. Most assemblies had facilitators to keep order and ensure that, if possible, everyone had their say. The larger assemblies often restricted the speakers only to spokespeople who represented smaller working groups, however each individual was still able to provide feedback, if only by means of hand signals.

General assemblies had been used by the Occupy Wall Street movement since its planning stages in August 2011, and were held in Zuccotti Park during the occupation itself. The name "New York City General Assembly" was given to the general assemblies taking place in Zuccotti Park. The "NYCGA" website, as it was known, was maintained by the Internet Working group as a resource for all assemblies and its working group meetings.

General assemblies were the de facto decision making body of the Occupy Movement from its inception. Designed to facilitate the formation of consensus, they typically reflected egalitarian principles. They were often organized to ensure everyone had the chance to have their say, to counteract the natural tendency for the most forceful to dominate disorganized discussion. In larger assemblies such as some of the ones in New York, this was done by formal mechanisms such as the progressive stack.

Another organizational feature from many larger general assemblies was to limit speaking mainly just to representatives of smaller working groups. This meant that each individual had a chance to speak and ask questions at work group level, while at assembly level the discussions were kept at a manageable length. In the smaller assemblies, anyone was able to make proposals for discussion. In larger assemblies, the audience got to make brief spoken responses to proposals from working groups. A queuing based system called a stack was sometimes used to manage this, with the facilitators indicating when it was a particular occupier's turn to speak. Even at the largest assemblies, individuals could always feed back to speakers and the crowd by means of hand signals.

Occasionally the hierarchical relationship between general assembly and the working group was reversed – a working group would make decisions for the assembly rather than merely feeding into it. For example, with confidential decisions that the assembly wished to hide from possible government agents or other informants, the assembly sometimes delegated executive function to a direct action committee, which was "empowered" by the assembly to plan actions such as publicity grabbing stunts that were best kept secret from the authorities until they have been executed.

The use of General assemblies for consensus based decision making can be traced to the Athenian democracy that arose around the sixth century BC in Ancient Greece. Athens' version of direct democracy was ended in 322 BC after defeat by the Macedonians. Since then formal decision making assemblies of Common people have occurred only sporadically and have been of little prominence in world affairs, with exceptions occurring as part of the direct democracy taking place in the Swiss Cantons of the late Middle Ages, and the Quaker movement which arose in the mid 17th century. In the 20th century, consensus based assemblies enjoyed a modest resurgence with the US civil rights movement of the 1960s. They grew in prevalence at around the turn of the millennium, manifesting as the spokescouncils of the 1999 anti-globalization movement and as the horizontalist assemblies that began to appear in South America as a response to the Argentine economic crisis (1999–2002).

Assemblies were used from the start of the Spanish Indignados movement in May 2011 – this is sometimes seen as the start of the wider Occupy movement, though more often it is considered an immediate precursor, with the global Occupy Movement itself starting with Occupy Wall Street.