Kammala wannan jumla: 2005 Monaco Grand Prix Formula Three ya kasance tseren tallafi ga
2005 Monaco Grand Prix da aka gudanar a Circuit de Monaco a Monte Carlo. Wannan shi ne karo na farko da motocin Formula Three suka yi tsere a Monaco tun daga 1997, kuma ya kasance na ƙarshe har zuwa yau. Gasar ita ce zagaye na huɗu na 2005 Formula Three Euroseries. An gudanar da tseren farko a ranar 20 ga Mayu, kuma an gudanar da tseren na biyu a ranar 21 ga Mayu.