Dorian Alan Peña (born October 12, 1977) is a Filipino-American professional basketball player. He is nicknamed the "Junkyard Dawg" for his consistent plays of putbacks and offensive rebounds. He previously played for the Negros Slashers and the Pasig-Rizal Pirates in the defunct Metropolitan Basketball Association before being recruited by the Beermen.

A Mythical Five member in the 2004–05 season, the 6-6 slotman was relegated to the Second Team the following year. He was one of the only three locals to average in double-double during a season, the other two being Eric Menk and Asi Taulava, both former Most Valuable Player winners. Peña averaged a career-best 13.2 points and 11.5 boards per game in the 2005–06 season and has been consistent since then.

After spending twelve seasons with the Beermen, he was traded to the Barako Bull Energy along with Dondon Hontiveros, Paul Artadi and Danny Seigle for Nonoy Baclao, Rey Guevarra and Rabeh Al-Hussaini. He spent a season with the Energy providing boost off the bench after being traded again back to his former team. Pena went back to Barako again after another trade and was waived eventually after one season. After testing the free agency, Pena signed a deal with the GlobalPort Batang Pier. He was waived before the start of the 2016-17 PBA season.