If you mean the name, it is spelled "Máximo" Notice the acute accent on the "a".
The pronounciation would mi like this: MAHK-si-mo
In the International Phonetic Alphabet (IPA) the pronunciation is /ˈmak.si.mo/.
Maksim Averin's birth name is Maksim Viktorovich Averin.
Maksim Ruf's birth name is Ruf, Maksim Abramovich.
Maksim Shtraukh's birth name is Shtraukh, Maksim Maksimovich.
Maksim Pezhemsky's birth name is Pezhemsky, Maksim Geliyevich.
Maksim Mikhaylov's birth name is Maksim Dormidontovich Mikhailov.
Maksim Munzuk's birth name is Munzuk, Maksim Monguzhukovich.
Maksim Matveyev's birth name is Maksim Aleksandrovich Matveev.
Maksim Kalinin's birth name is Maksim Nikolaevitch Kalinin.
Maksim Konovalov's birth name is Maksim Veniaminovich Konovalov.
Maksim Leonov's birth name is Maksim Viktorovich Leonov.
Maksim Dakhnenko's birth name is Maksim Arkadevich Dakhnenko.
Maksim Odnodvortsev was born in 1980.