Master of the House (Danish: Du skal ære din hustru, literally Thou Shalt Honour Thy Wife) is a 1925 Danish silent drama film directed and written by acclaimed filmmaker Carl Theodor Dreyer.

The film marked the debut of Karin Nellemose, and it is regarded by many as a classic of Danish cinema.

Viktor Frandsen, embittered by losing his business, is a tyrant at home, constantly criticizes his patient, hard-working wife Ida and their three children.

Finally, he issues an ultimatum: either Mrs. Kryger and the openly hostile Mads (who regularly helps the family) are gone by the time he returns or the marriage is over.

Ida's mother then shows him a newspaper advertisement offering an optometrist's shop for sale and gives him a check to buy it.