There is no definitive answer to this question as it depends on a number of factors, including what type of sausage you are talking about and how it is measured. However, we can take a look at some of the contenders for the title of world's biggest sausage.
One contender for the title is the 'Biggest Sausage in Town' from UK-based company Heck Food. This pork and beef sausage weighs in at a whopping 3kg (6.6lbs) and is over 1m (3ft) long. It holds the Guinness World Record for the largest commercially available sausage, although there are other sausages that are even bigger if you're willing to make them yourself.
Another contender is The Beast, a 6ft (1.8m) long all-beef sausage made by Wisconsin-based company Usinger's Famous Sausage. This massive meat product weighs in at around 15lbs (7kg), making it one of the heaviest sausages on our list.
If we're talking about sheer length, then another strong contender has to be The Great Big One from British butcher John Morrell & Co Ltd. This pork sausage measures an impressive 9 feet (2.7m) long and was unveiled back in 2016 as part of an attempt to break the Guinness World Record for longest continuous cooked sausage link ever made - although they ultimately failed).
So there you have it, some of the leading contenders for world's biggest sausage title - although as we said, there is no definitive answer and it really depends on your own personal definition of 'big'.