The Archbishop also called on Catholics to make their opposition known to proposals to relax rules restricting the advertising of condoms on television.
Appointed as the new Archbishop of Westminster by the Pope last Friday, he said current television advertising for condoms 'demeaned' young people by depicting 'casual sex on the street corner' and 'drunken sex'.
He urged Catholics to respond to a consultation exercise on the proposed changes, saying that the country would not expect abortion to be advertised 'alongside a packet of crisps'.
Archbishop Nichols said: 'I would appeal to Catholics to respond to the consultation and two of the principles put forward are that advertisements should be truthful and tasteful.
'I doubt that any intended adverts about abortion would be fully truthful and tell the whole truth of the effects of abortion in a woman's life. I seriously wonder if any advertisements for the use of condoms would be tasteful because the ones we have at the moment are demeaning of the young people of this country.
'They depict casual sex on the street corner and drunken sex. I do not think these things do anything to genuinely help young people to understand themselves in their own dignity and in the proper meaning of what human sexuality is about.'
Under the terms of the proposals, adverts for pregnancy advisory services could be allowed in prime-time evening slots on the major channels and radio but advertisers would have to stipulate if the service does not refer women directly for abortion.
Condoms could be advertised on television before the 9pm watershed.
Currently Channel 4 is the only channel with permission to advertise condoms from 7pm.
The proposals would mean that for the first time pregnancy advisory services advertisements that were not Government approved would be permitted on broadcast media. [Telegraph]