Yes, 5'11 is considered tall for a 14-year-old.
This is based on general growth charts and the fact that the average height for 14-year-olds is significantly lower. While height can vary greatly due to genetics, nutrition, and puberty timing, exceeding the average by several inches places someone in the taller percentile for that age group. For both males and females, 5'11 at 14 is above average, with a larger disparity when considering girls.
Therefore, a 14-year-old who is 5'11 is likely considered tall by their peers and by general growth standards.
