There are several known stars that are larger than the Sun. Here are a few examples:
UY Scuti: This red supergiant star is currently considered one of the largest known stars. Its size is estimated to be around 1,700 times larger than the Sun.
VY Canis Majoris: Another red supergiant, VY Canis Majoris is one of the largest known stars in terms of both mass and volume. Its size is estimated to be between 1,000 and 1,700 times larger than the Sun.
Betelgeuse: This red supergiant is well-known as one of the brightest stars in the night sky. Its size is estimated to be around 950-1,200 times larger than the Sun.
Antares: Antares is a red supergiant star located in the constellation Scorpius. It is estimated to be about 700 times larger than the Sun.
These are just a few examples, and there are many other stars in the universe that are larger than the Sun. It's worth noting that the exact sizes of stars can be challenging to measure accurately, and new discoveries could provide updates to our current understanding.