Largest Canadian Genealogy Databases

Following on Tuesday's post on the Canadian census, here's a list of the largest Canadian "genealogy" databases, arranged by the number of records, for holdings of Ancestry, FamilySearch, Findmypast, Library and Archives Canada (LAC), and MyHeritage. It's for all databases with more than 2 million records. It is possible LAC may have additional databases that could fall within the criteria but there is no convenient catalogue listing.

Title	Records	Organization
Canada, Voters Lists, 1935-1980	95,335,143	Ancestry
Canadian Phone and Address Directories, 1995-2002	37,866,987	Ancestry
Quebec, Canada, Vital and Church Records (Drouin Collection), 1621-1968	16,789,307	Ancestry
Quebec, Canada, Notarial Records, 1637-1935	16,529,462	Ancestry
Canada Phone and Address Listings	13,326,736	MyHeritage
Ontario, Canada, Marriages, 1826-1937	9,357,444	Ancestry
1921 Census of Canada	8,800,634	Ancestry
1921 Census	8,788,483	LAC
1921 Canada Census	8,683,491	MyHeritage
Canada, Obituary Collection, 1898-Current	8,507,084	Ancestry
Canada, City and Area Directories, 1819-1906	8,299,563	Ancestry
Quebec Marriage Returns, 1926-1997	7,901,443	MyHeritage
Canadian Passenger Lists, 1865-1935	7,276,372	Ancestry
Canada Census, 1911	7,246,159	FamilySearch
1911 Census of Canada	7,223,678	Ancestry
1911 Census	7,204,838	LAC
Canada Census 1911	7,157,334	Findmypast
1911 Canada Census	7,157,334	MyHeritage
Ontario, Canada Births, 1858-1913	6,484,503	Ancestry
United States, Canadian Border Crossings	6,150,580	Findmypast
Canada, Find A Grave Index, 1600s-Current	6,103,062	Ancestry
U.S. and Canada, Passenger and Immigration Lists Index, 1500s-1900s	5,430,203	Ancestry
U.S., Border Crossings from Canada to U.S., 1895-1960	5,395,724	Ancestry
1901 Census	5,371,315	LAC
1901 Census of Canada	5,343,565	Ancestry
Canada Census, 1901	5,343,565	FamilySearch
1901 Canada Census	5,213,095	MyHeritage
Ontario Births, 1869-1912	5,200,361	MyHeritage
Canada Census 1901	5,167,205	Findmypast
1891 Census	4,833,239	LAC
1891 Census of Canada	4,790,154	Ancestry
Canada Census, 1891	4,787,225	FamilySearch
Canada Census 1891	4,539,639	Findmypast
1891 Canada Census	4,539,588	MyHeritage
1881 Census of Canada	4,281,168	Ancestry
Canada Census, 1881	4,281,160	FamilySearch
1881 Census	4,278,327	LAC
Canada Census 1881	4,273,931	Findmypast
1881 Canada Census	4,273,931	MyHeritage
Canada Passenger Lists, 1881-1922	3,907,325	FamilySearch
Ontario, Canada, Deaths and Deaths Overseas, 1869-1947	3,888,625	Ancestry
Canada Census, 1871	3,519,941	FamilySearch
1871 Census of Canada	3,516,910	Ancestry
1871 Census	3,485,761	LAC
Canada Census 1871	3,292,788	Findmypast
1871 Canada Census	3,292,788	MyHeritage
1861 Census	3,112,269	LAC
Ontario, Canada, Roman Catholic Baptisms, Marriages, and Burials, 1760-1923	3,071,603	Ancestry
Canadian Headstones	2,982,451	FamilySearch
1861 Census of Canada	2,958,892	Ancestry
Saskatchewan, Canada, Residents Index (SRI), 1800-2012	2,948,436	Ancestry
Canada Census 1861	2,764,253	Findmypast
1861 Canada Census	2,764,253	MyHeritage
1851 Census	2,312,919	LAC
Canadian Genealogy Index, 1600s-1900s	2,255,689	Ancestry
Death, Burial, Cemetery & Obituaries	2,137,853	MyHeritage
Ontario Births, 1869-1912	2,081,426	FamilySearch
Ontario Birth Index 1860-1920	2,076,046	Findmypast
Canada, Prairie Provinces Census, 1926	2,073,271	FamilySearch
Census of the Prairie Provinces, 1926	2,067,393	LAC
Ontario Deaths, 1869-1937 and Overseas Deaths, 1939-1947	2,050,112	FamilySearch
Canadian Obituaries, 1997-2017	2,035,945	MyHeritage

It's entirely possible I missed some, perhaps in other sources — please let me know in a comment.

It's easy to get fixated on large databases. Experienced searchers often find a small database, if it targets the time, place and type of record of interest, can be the one that breaches a genealogical roadblock.