Yes, a Jain girl can marry a Hindu boy from the point of view of Jain Dharma.

In Jainism:

• No scriptural ban

Jain scriptures do not say that a Jain must only marry a Jain. Marriage is seen more as a social and family institution, not a spiritual necessity for liberation. ( jainknowledge.com)

• What really matters in Jain view

The important thing is: - Both follow ahimsā (non‑violence) as much as possible. - Respect for Jain food rules (pure vegetarian, usually no eggs, no alcohol, many avoid onion–garlic and root vegetables). - Truthfulness, fidelity, simple living, and non‑attachment in family life. ( jainknowledge.com)

• Practical points you both should discuss clearly

Before marriage, it is very important to talk openly about: 1. Diet – Will the Hindu partner be okay with a Jain‑style kitchen (no meat, etc.)? 2. Children – How will you raise them? Will they learn Jain principles, go to Jain derāsar, pāṭhśālā, etc.? 3. Festivals & rituals – How you will manage both Jain and Hindu festivals and family expectations. 4. Family acceptance – Some families may resist; this is social, not Jain‑scriptural. Handle with patience and respect. ( jainknowledge.com)

• Digambar / Śvetāmbara view

Both traditions treat marriage as a gṛhastha dharma (duty of a householder), not a direct path to moksha. - Many families in both traditions prefer a Jain spouse to preserve practices. - But this is custom, not a strict religious rule.

So, according to Jain Dharma, such a marriage is allowed, provided:

• There is mutual respect,
• No pressure to give up ahimsā and Jain values, and
• You both honestly agree on daily lifestyle and children’s upbringing.

You can read more on a very similar question here: “Can a Hindu boy marry a Jain girl”