* For the language: The best option is simply Marathi.
* For a person from Maharashtra: You can say Maharashtrian.
* For a person who speaks Marathi: You could say Marathi speaker or a person who speaks Marathi.
It's important to note that "Maharashtrian" is not a direct translation of "Marathi." It refers to someone from the state of Maharashtra, where Marathi is the primary language.