Mark Jason Melligen (born April 6, 1986 in Bacolod, Negros Occidental, Philippines) is a Filipino former professional boxer.

[1] After losing by knockout against Sebastian Andres Lujan in an upset in 2011, Melligen's career went downhill and he fought two more times in 2012 against little-known opponents, winning both matches by early TKO.

On August 15, 2009, Mark "MJM Grand" Melligen took on Ernesto "Baby" Zepeda of Mexico in the undercard of “Pinoy Power 2” at the Hard Rock Hotel and Casino in Las Vegas.

After receiving a warm welcome as he entered the ring, Melligen showed some aggressive moves in the first round such as uppercuts and left straight punches.

[6] On July 1, 2011, Melligen faced Argentinian boxer Sebastian Andres Lujan at the Freeman Coliseum, San Antonio, Texas, USA.

Following the Lujan fight, in the second half of 2012, Melligen fought two more times in the Philippines against little-known boxers, winning both matches by early TKO.

In June 2013, a buy-bust operation in Mandaue City led to the arrest of Melligen, Joembee “Ombie” Mark Sencio and his younger brother.