Below is a listing of the first known reference in newspapers to cricket being played by teams starting with the letter N in various settlements in Wales during the 19th century.
Nantgaredig 1877
Nantyglo 1851
Nantyglo Black Lion1876
Nantygolo Hick’s Shoe Factory 1876
Nantyglo Lightfoot 1874
Nantyglo Wesleyans 1893
Nantymoel 1887
Narberth 1864
Narberth Hill Rustics 1869
Narberth United 1875
Narberth Workingmen 1880
Neath (see Neath)
Nelson (Llancaiach) 1879
Nerquis Hall (Mold) 1866
Nettlefolds (Tydee) 1888
Nevin 1877
Newbridge 1861
Newbridge Juniors 1893
Newbridge (Denbighshire) 1871
Newcastle Emlyn 1858
Newcastle Emlyn Grammar School 1876
New Passage (Chepstow) 1885
New Tredegar 1866

Credit – Glamorgan Cricket Archives.
Newport (Monmouthshire – see Newport)
Newport (Pembrokeshire) 1880
Newquay 1890
Newtown 1866
Newtown (Cross Keys) 1888
Newtown (Mountain Ash) 1880
Newtown Victoria 1888
Nicholaston 1867
Nil Desperandum 1884
Noel Brothers Works 1893
North Risca 1881
North Tenby 1861
North Wales 1883
North Wales Training College 1860
North Wales University College 1892
Northop 1864
Northop Vicarage 1877
Norton Lodge School 1869