A Catholic man wants to marry a Muslim woman and is thinking about Islam
Question

                I am a Catholic male and i am interested in marrying a Muslim woman. I have been reading about the religion and i am interseted in converting, how does one go about this?  Thank you in advance for your response.
Praise be to Allah.Who has instilled in you the desire to 
    enter Islam. We thank you for your question about how to enter the religion 
    of Allaah, for no one will be saved on the Day of Resurrection but those who 
    follow it. Allaah says in the Holy Qur’aan:
    
    “And whoever seeks a religion other 
    than Islam, it will never be accepted of him, and in the Hereafter he will 
    be one of the losers”

    [Aal ‘Imraan 3:85]
Entering Islam is very 
    easy and is not a complicated matter. All you have to do is to utter the 
    Shahaadatayn (the twin testimony of faith), which is the key to Islam and 
    the sum and basis of the faith. You have to say “Ash-hadu an laa ilaaha 
    ill-Allaah wa ash-hadu anna Muhammadan Rasool-Allaah (I bear witness 
    that there is no god except Allaah and I bear witness that Muhammad is the 
    Messenger of Allaah)”; then take a bath (ghusl) with the intention of 
    purifying yourself in order to pray and practise the rituals of the Islamic 
    religion, the greatest of which is prayer, which connects the person to his 
    Lord. For more details on how to do that, see Question no. 13340 and 11497. 
    You also have to believe with certainty that ‘Eesa ibn Maryam (Jesus the son 
    of Mary – peace be upon him) is the slave of Allaah and His Messenger, not a 
    god or the son of God; rather he is a human being whom Allaah sent with the 
    Message of Divine Oneness (Tawheed) and that only Allaah is to be 
    worshipped, with no partner or associate. Allaah says (interpretation of the 
    meanings): 
“No son (or offspring) 
    did Allaah beget, nor is there any ilaah (god) along with Him”
[al-Mu’mineen 23:91] 
“The Messiah [‘Eesa 
    (Jesus)], son of Maryam (Mary), was no more than a Messenger; many were the 
    Messengers that passed away before him. His mother [Maryam (Mary)] was a 
    Siddeeqah [i.e. she believed in the Words of Allaah and His Books (see Verse 
    66:12)]. They both used to eat food (as any other human being, while Allaah 
    does not eat)”
[al-Maa'idah 5:75]

     This shows you that Islam respects ‘Eesa (Jesus – peace be 
    upon him) and his mother, without exaggerating about them or falling into 
    shirk (polytheism, the association of others in worship with Allaah).

     We would also like to point out that although the motive for 
    your becoming Muslim at this stage may be your desire to marry a Muslim 
    woman, if you become Muslim and learn more about this religion and really 
    put it into practice in your life, then your faith will become stronger, 
    your intention will become purely for the sake of Allaah and you will have 
    the conviction that this religion is indeed true and the soul cannot be 
    purified except through this religion. 

     We are optimistic that you will have a happy future, because 
    of the good start you mention in your question, which makes us optimistic, 
    especially when we ponder the words of the Qur’aan (interpretation of the 
    meaning):

     “And whomsoever Allaah wills to guide, He opens his heart to 
    Islam”

    [al-An’aam 6:125]

     We ask Allaah to open your heart to the religion and help 
    you to enter it. No doubt this will be good news for the Muslim woman whom 
    you will marry, for she will know that she cannot marry you unless you 
    become Muslim, as is the law of the Lord of the Worlds. We welcome you to 
    join us on this site as a questioner or reader, or to cooperate with us in 
    doing good. May Allaah send blessings upon our Prophet Muhammad and upon all 
    his family and companions.