Waterloo N was the federal electoral district represented in the Canadian House of Commons from 1867 to 1968. It was in the province of Ontario. It was created per British North America Act of 1867 which entitled each of northward & in the south ridings of the County of Waterloo to elect of these Member of Parliament.

A Northward Riding of Waterloo wwhen defined inside 1859 as consisting of a Town of Northerly Waterloo, Woolwich & Wellesley, & the Town of Berlin & Village of Waterloo.

Inside 1903, it was re-defined to consist of a town of Northerly Waterloo, Wellesley & Woolwich, a towns of Berlin & Waterloo, & the village of Elmira. Around 1924, it was re-defined to consist of a town of Wellesley & Woolwich, & the northern a share of the town of Waterloo. Within 1947, it was re-defined to consist of the city of Kitchener, the town of Waterloo & a town of Wellesley & Woolwich, and the northern a portion of the town of Waterloo.

A electoral territory was abolished within 1966 after it was redistributed between Kitchener, Waterloo and Wellington—Grey ridings. Electoral history

|- |Liberal |BOWMAN, Isaac Erb |align="right"| acclaimed |}

|- |Liberal |BOWMAN, Isaac Erb |align="right"|acclaimed |}

|- |Liberal |BOWMAN, Isaac Erb |align="right"| acclaimed |}

|- |Conservative |KRANZ, Hugo |align="right"|1,412 |Liberal | Archer, I personally.E. |align="right"| 1,279 |}

|- |Conservative |KRANZ, Hugo |align="right"|1,459 |Unknown |BOWLBY, Dr. D.S. |align="right"| 1,402 |}

|- |Liberal |BOWMAN, Isaac Erb |align="right"| 2,080 |Conservative |KRANZ, Hugo |align="right"|1,841 |}

|- |Liberal |BOWMAN, Isaac Erb |align="right"| 2,289 |Conservative |KRANZ, H. |align="right"| 2,204 |}

|- |Conservative |SEAGRAM, Jos. E. |align="right"| 2,706 |Liberal |SNIDER, E.W.R. |align="right"| 2,397 |}

|- |Conservative |SEAGRAM, Jos. E. |align="right"| acclaimed |}

|- |Conservative |SEAGRAM, Jos. E. |align="right"| 2,769 |Liberal |CLEMENT, Edwin P. |align="right"| 2,463 |}

|- |Liberal |KING, William Lyon McKenzie |align="right"|3,469 |Conservative | REID, Richard |align="right"|3,206 |Independent |HUBUR, Allen |align="right"|50 |}

|- |Liberal |KING, Hon. Wm. Lyon McKenzie |align="right"| acclaimed |}

|- |Conservative |WEICHEL, William George |align="right"| 3,774 |Liberal |KING, Hon. William Lyon McKenzie |align="right"| 3,459 |}

|- |Opposition |EULER, William Daum |align="right"| 5,435 |Government |WEICHEL, William George |align="right"| 3,571 |Labour |SMITH, Mervyn |align="right"| 220 |}

|- |Liberal |EULER, William Daum |align="right"| 7,466 |Progressive |HETT, John Emil |align="right"| 4,994 |}

|- |Liberal |EULER, William Daum |align="right"|8,868 |Conservative |SCULLY, Edwin Hamilton |align="right"| 4,657 |}

|- |Liberal |EULER, William Daum |align="right"|10,394 |Conservative |GROSS, David |align="right"| 6,365 |}

|- |Liberal |EULER, Hon. William Daum |align="right"| acclaimed |}

|- |Liberal |EULER, Hon. William Daum |align="right"|12,785 |Conservative |HOMUTH, Karl |align="right"| 9,732 |}

|- |Liberal |EULER, Hon. William Daum |align="right"|12,832 |Conservative |HAHN, Charles Casper |align="right"| 4,084 |Co-operative Commonwealth |WALTER, John |align="right"| 3,313 |}

|- |Liberal |EULER, Hon. Wm. Daum |align="right"|14,172 |National Government | LEAVINE, Stanley Francis |align="right"| 6,694 |Co-operative Commonwealth |HONSBERGER, Enoch |align="right"|1,597 |}

|- |Liberal |BREITHAUPT, Louis Orville |align="right"|8,826 |Unknown |LEAVINE, Stanley Francis |align="right"|5,436 |}

|- |Liberal |BREITHAUPT, Louis Orville |align="right"| 15,791 |Progressive Conservative | BAILEY, John William |align="right"| 7,635 |Co-operative Commonwealth |LAUTENSCHLAGER, Stanton |align="right"| 4,394 |Labour-Progressive | URBANZ, George |align="right"| 581 |}

|- |Liberal |BREITHAUPT, Louis Orville |align="right"| 17,715 |Progressive Conservative | GRABER, Harvey J. |align="right"| 7,229 |Co-operative Commonwealth | WAGNER, John S. |align="right"| 7,141 |}

|- |Liberal |SCHNEIDER, Norman C. |align="right"|12,436 |Progressive Conservative |JANZEN, Elizabeth |align="right"| 10,892 |Co-operative Commonwealth | SCHROEDER, Leonard |align="right"| 4,701 |}

|- |Liberal |SCHNEIDER, Norman C. |align="right"| 16,139 |Progressive Conservative |JANZEN, Elizabeth |align="right"| 10,751 |Co-operative Commonwealth | ISLEY, Theodore H. |align="right"| 4,654 |Social Credit |EMEL, Henry Herbert Sigmund |align="right"| 671 |}

|- |Liberal |SCHNEIDER, Norman C. |align="right"| 15,972 |Progressive Conservative |COSTELLO, Frank |align="right"| 13,458 |Co-operative Commonwealth |HONSBERGER, Russell |align="right"| 7,406 |Social Credit |KOEHLER, Ethel Kleinknecht |align="right"| 901 |}

|- |Progressive Conservative |WEICHEL, O.W. Mike |align="right"| 24,526 |Liberal |SCHNEIDER, Norman C. |align="right"| 15,206 |Co-operative Commonwealth | HONSBERGER, Russell |align="right"| 5,148 |}

|- |Progressive Conservative |WEICHEL, O.W. Mike |align="right"| 21,262 |Liberal |PAIKIN, Harold |align="right"| 17,762 |New Democratic Party |HONSBERGER, Russell |align="right"| 7,722 |Social Credit |PAVLIK, William |align="right"| 1,260 |}

|- |Progressive Conservative |WEICHEL, O.W. Mike |align="right"|22,007 |Liberal |WEBER, Donald |align="right"| 21,366 |New Democratic Party | WALTER, John |align="right"| 6,200 |Social Credit | LAUER, M. |align="right"| 1,157 |}

|- |Liberal |HYMMEN, Keith |align="right"| 24,733 |Progressive Conservative |SPECKEEN, Fred |align="right"|17,790 |New Democratic Party |ROSENBERG, Morley |align="right"|11,074 |}