Quintus Marcius Philippus (Quintus Marcius Q. f. Q. n. Philippus) was a Roman consul

Consul

Consul was the highest elected office of the Roman Republic and an appointive office under the Empire. The title was also used in other city states and also revived in modern states, notably in the First French Republic...

 in 281 BC.

His father was probably Quintus Marcius Tremulus, consul in 306 and 288 BC. Instead of the cognomen

Cognomen

The cognomen nōmen "name") was the third name of a citizen of Ancient Rome, under Roman naming conventions. The cognomen started as a nickname, but lost that purpose when it became hereditary. Hereditary cognomina were used to augment the second name in order to identify a particular branch within...

 Tremulus he took Philippus, which was further inherited by his descendants.

He was elected consul together with Lucius Aemilius Barbula

Lucius Aemilius Barbula

Lucius Aemilius Barbula , or Lucius Aemilius Q.f. Q.n. Barbula, was a Roman politician and general from the patrician gens Aemilia. He was elected consul for 281 BCE and was given a command against the Samnites. He invaded the territory of Tarentum, which summoned Pyrrhus of Epirus for help...

. They had to carry on war with Etruscans. Marcius received triumph on the April 1 on account of his victory over them. In 269 BC he was elected censor together with his co-consul Lucius Aemilius Barbula. In 263 BC he was magister equitum to the dictator

Dictator

A dictator is a ruler who assumes sole and absolute power but without hereditary ascension such as an absolute monarch. When other states call the head of state of a particular state a dictator, that state is called a dictatorship...

 Gnaeus Fulvius Maximus Centumalus.