PARISH NAME | YEARS | PARISH NUMBER | COUNTY |
| Macduff | 1882-1954 | 155A/2 | Banff |
| Madderty | 378 | Perth | |
| Mains | 1855-1908 | 307/1 | Angus |
| Mains & Strathmartine | 1909-1951 | 307 | Angus |
| Makerstoun | 797 | Roxburgh | |
| Manor | 766 | Peebles | |
| Markinch | 1855-1898 | 447 | Fife |
| Markinch | 1899-1955 | 447/1 | Fife |
| Marnoch | 161 | Banff | |
| Maryculter | 264 | Kincardine | |
| Maryhill (Glasgow) | 1855-1906 | 622/1 | Lanark |
| Maryhill (Glasgow) | 1907-1934 | 644/14 | Lanark |
| Maryhill (Glasgow) | 1935-1955 | 644/12 | Lanark |
| Marykirk | 265 | Kincardine | |
| Maryton | 308 | Angus | |
| Mauchline | 604 | Ayr | |
| Maxton | 798 | Roxburgh | |
| Maxwelltown | 882 | Kircudbright | |
| Maybole | 605 | Ayr | |
| Mearns | 1855-1884 | 571 | Renfrew |
| Megget | 1855-1892 | 765/2 | Peebles |
| Megget | 1893-1930 | 779/2 | Selkirk |
| Megget & Lyne | 1893-1955 | 765 | Peebles |
| Meigle | 379 | Perth | |
| Melrose | 1855 | 799 | Roxburgh |
| Melrose | 1856-1872 | 799/1 | Roxburgh |
| Melrose | 1873-1891 | 799 | Roxburgh |
| Melrose | 1892-1955 | 799/1 | Roxburgh |
| Menmuir | 309 | Angus | |
| Menteith & Aberfoyle | 1954-1955 | 325 | Perth |
| Mertoun | 751 | Berwick | |
| Methlic | 221 | Aberdeen | |
| Methven | 380 | Perth | |
| Methy | 292 | Angus | |
| Mid-Calder | 1855-1930 | 694 | Midlothian |
| Middlebie | 1855-1897 | 841 | Dumfries |
| Middlebie Northern District | 1898-1955 | 841/1 | Dumfries |
| Middlebie Southern District | 1898-1955 | 841/2 | Dumfries |
| Midmar | 1855-1863 | 222 | Aberdeen |
| Midmar | 1864-1955 | 222A | Aberdeen |
| Mid Yell | 6 | Shetland | |
| Migvy | 242 | Aberdeen | |
| Millbrex | 1864-1955 | 222B | Aberdeen |
| Milngavie | 1921-1955 | 500/2 | Dumbarton |
| Milton (Glasgow) | 1855-1874 | 644/7 | Lanark |
| Milton (Glasgow) | 1875-1906 | 644/8 | Lanark |
| Milton (Glasgow) | 1907-1934 | 644/9 | Lanark |
| Milton (Glasgow) | 1935-1955 | 644/10 | Lanark |
| Minard & Cumlodden | 1927-1955 | 509 | Argyll |
| Minginish | 1898-1955 | 109/2 | Inverness |
| Minigaff | 876 | Kirkcudbright | |
| Minto | 800 | Roxburgh | |
| Mochrum | 892 | Wigtown | |
| Moffat | 842 | Dumfries | |
| Moneydie | 1855-1933 | 381 | Perth |
| Moneydie & Redgorton | 1934-1955 | 390 | Perth |
| Monifieth | 1855-1911 | 310 | Angus |
| Monifieth-East | 1912-1922 | 310/1 | Angus |
| Monifieth-West | 1912-1922 | 310/2 | Angus |
| Monifieth | 1923-1955 | 310 | Angus |
| Monikie | 311 | Angus | |
| Monimail | 448 | Fife | |
| Monkton & Prestwick | 606 | Ayr | |
| Monquhitter | 223 | Aberdeen | |
| Montrose-Burgh | 1855-1856 | 312/1 | Angus |
| Montrose-Landward | 1855-1856 | 312/2 | Angus |
| Montrose | 1857-1955 | 312 | Angus |
| Monyabroch | 483 | Stirling | |
| Monymusk | 224 | Aberdeen | |
| Monzie | 1855-1891 | 382 | Perth |
| Monvievaird & Strowan | 383 | Perth | |
| Moonzie | 1855-1931 | 449 | Fife |
| Mordington | 752 | Berwick | |
| Morebattle | 1855-1947 | 801 | Roxburgh |
| Morebattle & Linton | 1948-1955 | 801 | Roxburgh |
| Morham | 712 | East Lothian | |
| Morningside, Dean, Bouroughmuirhead | 1855-1858 | 685/1 | Midlothian |
| Morningside (Edinburgh) | 1903-1919 | 685/6 | Midlothian |
| Morningside (Edinburgh) | 1920-1955 | 685/7 | Midlothian |
| Mortlach | 162 | Banff | |
| Morton | 843 | Dumfries | |
| Morvern | 528 | Argyll | |
| Moulin | 1855-1881 | 384 | Perth |
| Moulin | 1882-1953 | 384/1 | Perth |
| Mousewald | 844 | Dumfries | |
| Moy & Dalarossie | 105 | Inverness | |
| Muckairn | 529 | Argyll | |
| Muckart & Glendevon | 1855 | 385 | Perth |
| Muckart | 1855-1954 | 385 | Perth |
| Muiravonside | 486 | Stirling | |
| Muirkirk & Glenbuck | 607 | Ayr | |
| Murroes | 313 | Angus | |
| Muthill | 1855-1859 | 386 | Perth |
| Muthill | 1860-1955 | 386A | Perth |