Vincent Nguyễn Văn Long OFM Conv (born 3 December 1961) is an Australian prelate of the Catholic Church.

He earned a baccalaureate in theology in 1989 from the Melbourne College of Divinity and his licentiate in spirituality and Christology at the Pontifical University of St. Bonaventure (Seraphicum) in Rome in 1994.

[1] He chose as his episcopal motto the Latin phrase DUC IN ALTUM from Luke 5:4, where Jesus tells Simon Peter to "put out into deep water", leading to the catch of fish too large for one boat, a symbol for the Church's work of evangelization.

[5] In Melbourne he served the diocese as Episcopal Vicar for Justice and Peace and for Social Services and chaired the Catholic Education Commission.

Describing the need for "ecclesial inclusiveness", to be "a big tent church", he said:[8] We cannot be a strong moral force and an effective prophetic voice in society if we are simply defensive, inconsistent and divisive with regards to certain social issues.

We cannot talk about the integrity of creation, the universal and inclusive love of God, while at the same time colluding with the forces of oppression in the ill-treatment of racial minorities, women and homosexual persons.

Rather, it has been driven involuntarily into a new world where many of the old stereotypes have been put to rest and the identities and rights of the marginalised are accorded justice, acceptance, affirmation and protection in our secular and egalitarian society.The Australian reported his remarks under the headline "Catholic bishop calls on Church to accept homosexuality"[9] and some international coverage drew on that.

[11] He wrote in September: "The lecture appealed for respectful language and pastoral engagement with [our gay and lesbian brothers and sisters], based on the fundamental dignity of every person and the teaching and example of Jesus."

He also told the Commission that a contributing factor to the patterns of sexual abuse was the culture of clericalism that isolates the assignment of clergy from all influence by the laity along with the Church's marginalisation of women.

[16] Addressing the National Council of priests on 30 August 2017, Long said church culture had contributed to the sex abuse crisis, that the church needed "a new wine in new wineskins, not a merely cosmetic change or worse, a retreat into restorationism" and explained that "The new wine of God's unconditional love, boundless mercy, radical inclusivity and equality needs to be poured into new wineskins of humility, mutuality, compassion and powerlessness.

He advised that the plebiscite was a time for "community discernment" as well: "It should be an opportunity for us to witness to our deep commitment to the ideal of Christian marriage.

He also noted that apart from the survey the Church needed to show more respect than it had for LGBT people, "affirming their dignity and accompanying them on our common journey towards the fullness of life and love in God".