County Kildare on Wikipedia.

Athy, St. Michael (R.C., 1802-1964). Presbyterian Church (1855). Both from an old postcards in Martin Thompson's Collection. A modern view of the Presbyterian Church, © Martin Thompson (2010). St. Dominic (R.C., Dominican, 1965). © Martin Thompson.

Bodenstown, the ruins of the ancient parish church. The graveyard holds the remains of Wolfe Tone, the Irish patriot and revolutionary. © Bruce Read.

Castledermot, St. James (CoI), as seen by Streetview in 2009. In the churchyard stand two High Crosses, the North Cross, and the South Cross, both © Christopher Skottowe (1965). Link.
Celbridge, St. Vincent de Paul (R.C.). St. John of God (R.C.) at a hospice. Christ Church (CoI). All © Bruce Read.

Donadea, St. Peter. © Bruce Read.

Kildangan, Our Lady of Victories (R.C., 1792). Another view. Both © Martin Thompson.
Kildare, the Cathedral (CoI) dedicated to St. Brigid. From an old postcard in Reg Dosell's Collection. A modern view, and three interiors - 1, 2, 3, all © John Balaam (2014). Link.
Kill, St. Brigid (R.C.). St. John (CoI, originally Catholic). Both © Bruce Read. Link.

Maynooth, the Chapel in St. Patrick's College. From an old postcard in Reg Dosell's Collection.
Moyglare, All Saints (CoI). Another view. Both © Alistair Quinlan (2012). Link.

Naas, Church of Our Lady and St. David (R.C.). From an old postcard in Reg Dosell's Collection. Link.

Rathangan, the former Feighcullen Church, currently (2008) up for sale. Link is to the Sales website.

Sallins, Church of Our Lady and the Guardian Angels (R.C.), as seen by Streetview in 2023. A tin tabernacle, Liam Kenny has advised that it was bought from a firm in Camberwell, London, as a flat pack in 1924. He also advises that this is one of only two Catholic tin tabernacles on the island of Ireland, the other being Our Lady of Visitation at Rearcross, for which see the County Tipperary page. SF 8898 8255. Link.
Straffan, St. Brigid (R.C.). St. Finian (CoI). Both © Bruce Read.