Red Kelly is the oldest for the Maple Leafs in a hat trick. He was 37 years and 255 days old against the Rangers on March 21, 1965.

Interpreted as:

oldest leaf to score regular-season hat trick

	NAME	AGE	HT	DATE	TM		OPP	G	A	P	+/-	PIM	PPG	PPA	SHG	SHA	GWG	OTG	S	S%	FOW	FO	FOW%	HIT	BKS	TKA	GVA	TOI
1	Red Kelly R. Kelly	37-255	1	3/21/1965	TOR	@	NYR	3	1	4	+3	0	0	0	0	0	0	0	4	75.0
2	Jason Spezza J. Spezza	37-236	1	2/4/2021	TOR	vs	VAN	3	0	3	+2	0	1	0	0	0	1	0	5	60.0	7	10	70.0	1	0	0	0	12:17
3	Norm Ullman N. Ullman	36-002	1	12/28/1971	TOR	@	PIT	3	0	3	+3	2	0	0	0	0	0	0	6	50.0
4	Mats Sundin M. Sundin	35-243	1	10/14/2006	TOR	vs	CGY	3	1	4	+2	0	0	1	1	0	1	1	5	60.0	16	23	69.6	0	0	0	1	22:48
5	Red Kelly R. Kelly	35-206	1	1/31/1963	TOR	@	MTL	3	1	4	+3	0	1	0	0	0	0	0	5	60.0
6	Gary Roberts G. Roberts	35-197	1	12/6/2001	TOR	@	NYR	3	0	3	+1	0	2	0	0	0	0	0	5	60.0	0	0		0	0	0	0	13:49
7	Jason Blake J. Blake	35-135	1	1/15/2009	TOR	@	CAR	3	2	5	+3	0	0	2	0	0	0	0	4	75.0	0	0		1	1	2	1	16:32
8	Mats Sundin M. Sundin	35-057	1	4/11/2006	TOR	vs	FLA	4	2	6	+1	0	3	2	0	0	0	0	7	57.1	27	37	73.0	0	1	0	2	25:18
9	Dave Keon D. Keon	34-243	1	11/20/1974	TOR	vs	PIT	3	1	4	+3	0	0	0	0	0	0	0	5	60.0
10	Red Kelly R. Kelly	34-137	1	11/23/1961	TOR	@	CHI	3	0	3	+3	0	0	0	1	0	0	0	4	75.0
11	Lorne Carr L. Carr	34-119	1	10/29/1944	TOR	@	CHI	3	2	5		0	1	0	0	0	1	0
12	Sweeney Schriner S. Schriner	34-092	1	3/2/1946	TOR	vs	CHI	3	0	3		0	0	0	0	0	0	0
13	John Tavares J. Tavares	34-086	1	12/15/2024	TOR	vs	BUF	3	0	3	+1	0	1	0	0	0	1	0	6	50.0	16	25	64.0	2	0	0	1	21:02
14	John Tavares J. Tavares	34-038	1	10/28/2024	TOR	@	WPG	3	0	3	+3	0	0	0	0	0	1	0	7	42.9	16	21	76.2	1	0	1	1	17:13
15	Ron Ellis R. Ellis	33-349	1	12/23/1978	TOR	@	STL	3	0	3	+2	0	1	0	0	0	0	0	3	100.0
16	Alexander Mogilny A. Mogilny	33-308	1	12/23/2002	TOR	vs	ATL	3	1	4	+3	0	0	0	1	0	1	0	4	75.0	0	0		1	0	0	0	21:19
17	Alexander Mogilny A. Mogilny	33-260	1	11/5/2002	TOR	vs	TBL	3	0	3	+2	0	0	0	0	0	1	0	6	50.0	0	0		0	0	0	0	15:51
18	Lorne Carr L. Carr	33-251	1	3/9/1944	TOR	@	NYR	3	0	3		0	0	0	0	0	1	0
19	Lorne Carr L. Carr	33-200	1	1/18/1944	TOR	@	BOS	3	1	4		0	1	0	0	0	0	0
20	Rusty Crawford R. Crawford	33-068	1	1/14/1919	TAN	vs	SEN	3	0	3		9					0	0
21	Syl Apps S. Apps	33-063	1	3/21/1948	TOR	@	DET	3	0	3		0	1	0	0	0	1	0
22	Norm Ullman N. Ullman	33-009	1	1/4/1969	TOR	vs	NYR	3	0	3	+2	0	0	0	0	0	0	0	4	75.0
23	Norm Ullman N. Ullman	32-347	1	12/7/1968	TOR	vs	NYR	3	1	4	+4	0	0	0	0	0	0	0	4	75.0
24	Sweeney Schriner S. Schriner	32-334	1	10/29/1944	TOR	@	CHI	3	1	4		0	2	0	0	0	0	0
25	Floyd Smith F. Smith	32-306	1	3/17/1968	TOR	@	PHI	3	0	3	+2	0	1	0	0	0	0	0	5	60.0