Primum

Primum may refer to :


 * Primum movens is a term used in the philosophical and theological cosmological argument for the existence of God.
 * Quo primum is the name of an apostolic constitution in the form of a papal bull issued by Pope Pius V on 14 July 1570.
 * The Primum Mobile is the outermost moving sphere in the geocentric model of the universe in medieval and Renaissance astronomy.
 * The septum primum is a septum which subdivides the cavity of primitive atrium into right and left chambers in the developing heart
 * Primum Familiae Vini is an association of family-owned wineries.
 * Primum non nocere is a Latin phrase that means "First, do no harm."
 * Primum Entertainment Group is a media company involved in the production and distribution of filmed entertainment properties and live events in Latin America.
 * Cristilabrum primum is a species of air-breathing land snail.
 * Ubi Primum (disambiguation), the title of two different 19th century encyclicals.