Generation Y, also known as Millennials, were born between approximately 1981 and 1996. However, different sources have slightly different definitions of the birth years for this generation. For example, some sources define Generation Y as those born between 1980 and 2000. Others define it as those born between 1977 and 1995, or between 1977 and 1994/6. Despite these differences, all sources agree that Generation Y follows Generation X and precedes Generation Z.

In summary, Generation Y, or Millennials, were born between approximately 1981 and 1996, although there are slight variations in the exact birth years depending on the source.