No. Pitru Paksha is a Hindu festival/period for paying homage to ancestors, and it is not part of Jain dharma.

What Jains generally believe:

• Jain scriptures do not prescribe Pitru Paksha or Shraddha as a Jain rite.
• Ancestors are respected in the sense of living a virtuous life and following right conduct, which helps one’s own karmas and future births. Specific annual rites for pitris are not part of Jain practice.
• Some families may have local or cultural rituals for ancestors, but these are not standardized Jain vows or observances and differ by region. They are not considered the canonical or spiritually essential path in Jainism.

On Digambar and Shwetambar traditions: both branches do not include Pitru Paksha as a prescribed Jain practice. Any ancestor-related rites in Jain households are informal, regional, or personal choices rather than formal Jain doctrinal observances.

You can read more about Jain perspectives on related topics in a Jain knowledge resource here when available.