A very good collection of vocation prayers may be found at the Invisible Monastery:
World Day of Prayer for Vocations Card
Lord Jesus, Good Shepherd,
may young people in our parish
hear your call and follow your voice
as they discern their vocations.
Lead your people to heaven
through the ministry of holy priests
and consecrated men and women.
Jesus, we trust in you! Amen
A Prayer for Vocations
God our Father, You made each of us
to use our gifts in the Body of Christ.
We ask that You inspire
young people whom You call to
the priesthood and consecrated life
to courageously follow Your will.
Send workers into Your great harvest
so that the Gospel is preached,
the poor are served with love,
the suffering are comforted,
and Your people are strengthened
by the sacraments.
We ask this through
Christ our Lord.
Children’s “Prayer to Know My Vocation”
God, my Father,
You created me with a specific purpose
for my life; this is my vocation.
By following Your plan,
I will be happy on Earth,
earn the reward of Heaven,
and help others do the same.
Please help me to hear,
understand, and follow
Your call with my whole heart,
especially when it seems most difficult.
Mary, Mother of God and my Mother,
pray for me to know and accept God’s will for my life.