I am trying to complete a list of church lunchtime concert in London. So far, I have attended the following ones. Could you please post here with any other suggestion? Thank you in advance.

Monday: Southwark Cathedral
St.Micheal's Cornhill
St.Anne & St.Agnes

Tuesday: St.Lawrence Jewry
All Hollow's by the Tower
St. Magnus The Martyr (second
Tuesday every month)
Southwark Cathedral

Wednesday: Temple Church

Thursday: St.Mary-Le-Bow
St.Olave's Hart Street
St.Anne & St.Agnes

Friday: St.Stephen Walbrook

I have attended some at St.Sepulchre, but not sure whether it is weekly or not?

The obvious one that comes to mind is St. Martins in the Fields.
http://www.stmartin-in-the-fields.org

I'm pretty sure that if you buy a Time Out in London, it lists all of the church lunchtime concerts for the week.

There is a church on Piccadilly-StJames. They do lunchtime concerts on Mon,Wed&Fri. It is a beautiful little church I like very much!

The Friday lunchtime recitals at St. George's cathedral Southwark (RC) will restart in October. They also have monthly organ recitals Saturday lunchtime.

You might be interested in Radio Three's Lunchtime Concerts http://www.bbc.co.uk/radio3/lunchtimeconcerts/
Many are at the Wigmore Hall (well worth a visit) but some come from London churches.

Good advice from WillTravel. We attended a wonderful (free) concert at St. Martin-in-the-Fields the last time we were in London a year ago last December. Terrific pianist. Afterward we walked over to the National Gallery, which we never tire of visiting. There is a restaurant at the church, so you might plan lunch and the concert.

Many thanks for the replies.

I have stayed around Trafalfar Square dozens times last 3-4 years, for some reason, never had chance to attend the concert at St.Martin-in-the Fields. Maybe I shall try next time.