I'm 98% certain Anissa is female.
According to a dataset of 5601, the average Anissa is around 34 years old.
This name was first brought to public attention in 1966 by the child actress Anissa Jones (1958-1976) . In her case it was a transcription of the Arabic name أنيسة (see Anisa), given to honour her Lebanese heritage. Other parents who have since used this name may view it simply as an elaboration of Anna using the popular name suffix issa.
We use a combination of data from the internet, and our own Machine Learning models to make these predictions.
In a gist, we use a Machine Learning model trained on a diverse global dataset of 100m+ names, and use it to predict different traits for a person based on first name!
NameGuessr guesses a person's nationality, age, and gender based on their name. We also try to give insightful info around the name's origin, name meaning, and name pronounciation.