Yes, up to four, with a firm condition of justice among them. The Quran says that whoever fears he will not be just should marry one (4:3), and notes that perfect fairness in feeling is not possible (4:129), so the duty is justice in spending, time and treatment. Local law and agreements may add conditions.
And if you fear that you will not deal justly with the orphan girls, then marry those that please you of [other] women, two or three or four. But if you fear that you will not be just, then [marry only] one or those your right hand possesses. That is more suitable that you may not incline [to injustice].
And you will never be able to be equal [in feeling] between wives, even if you should strive [to do so]. So do not incline completely [toward one] and leave another hanging. And if you amend [your affairs] and fear Allah - then indeed, Allah is ever Forgiving and Merciful.
This is general information, not a fatwa. For your own situation, ask a qualified scholar.
Questions about halal and haram
Is a man allowed to marry more than one wife?
Yes, up to four, with a firm condition of justice among them. The Quran says that whoever fears he will not be just should marry one (4:3), and notes that perfect fairness in feeling is not possible (4:129), so the duty is justice in spending, time and treatment. Local law and agreements may add conditions.
