J. Mascis
- Npe: J. Mascis
- Cov Nrov: 1.942
- Paub Txog: Acting
- Hnub yug: 1965-12-10
- Qhov chaw yug: Amherst - Massachusetts - USA
- Homepage: http://www.jmascis.com/
- Kuj Paub Li: Joseph Daniel Mascis, Joseph Donald Mascis Jr., Joseph Donald Mascis, Joseph Mascis