2MASS J03552337+1133437 (2MASS J0355+11) is a nearby brown dwarf of spectral type L5γ,[3] located in constellation Taurus at approximately 29.8 light-years from Earth.

[4] 2MASS J0355+11 was discovered in 2006 by Reid et al.[5] It is young, has a low surface gravity and a red spectral energy distribution compared to field brown dwarfs.

It has a very red color thought to be caused by photospheric dust.

[6] It is radio-quiet brown dwarf, indicating an absence of stellar flares.

[9] The interstellar comet 2I/Borisov passed 1.4 light-years (0.44 parsecs) from 2MASS J0355+11 280 thousand years before arriving to the Solar System.