which nhl team has lost the most stanley cups

The Boston Bruins have the most series losses by a team in the Stanley Cup Finals, with 14 losses.

	TEAM	SERIES L	SERIES	GP	W	L	T	OTL	PTS	PTS%	SOW	SOL	G	GA	DIFF	PP%	PK%	S/GP	S%	SA/GP	SV%
1	Bruins	14	Stanley Cup Finals	98	37	58	3	0	77	.393	0	0	231	265	-34	17.2	85.2	29.16	8.7	29.79	.906
2	Red Wings	13	Stanley Cup Finals	127	61	66	0	0	122	.480	0	0	316	314	2	16.8	82.8	31.24	7.9	28.56	.909
3	Canadiens	9	Stanley Cup Finals	166	104	61	1	0	209	.630	0	0	484	395	89	15.0	83.5	31.42	10.0	27.72	.918
4	Maple Leafs	8	Stanley Cup Finals	105	56	49	0	0	112	.533	0	0	278	269	9			33.03	8.3	34.88	.921
5	Blackhawks	7	Stanley Cup Finals	71	34	37	0	0	68	.479	0	0	187	205	-18	11.6	78.6	30.02	9.4	30.76	.902
6	Rangers	7	Stanley Cup Finals	55	23	32	0	0	46	.418	0	0	124	146	-22	15.2	87.1	29.35	8.6	32.35	.905
7	Flyers	6	Stanley Cup Finals	44	16	28	0	0	32	.364	0	0	128	149	-21	26.3	67.0	28.14	10.3	30.91	.890
8	Stars	4	Stanley Cup Finals	29	11	18	0	0	22	.379	0	0	69	96	-27	11.8	79.1	29.28	8.1	31.21	.894
9	Oilers	3	Stanley Cup Finals	45	26	18	1	0	53	.589	0	0	150	118	32	19.3	83.2	29.27	11.4	25.69	.898
10	Canucks	3	Stanley Cup Finals	18	6	12	0	0	12	.333	0	0	37	62	-25	13.2	65.5	31.72	6.5	33.61	.898
11	Blues	3	Stanley Cup Finals	19	4	15	0	0	8	.211	0	0	35	65	-30	5.6	70.8	25.89	7.1	33.58	.898
12	Millionaires	3	Stanley Cup Finals	15	6	9	0	0	12	.400	0	0	42	46	-4
13	Lightning	2	Stanley Cup Finals	30	16	14	0	0	32	.533	0	0	73	70	3	19.0	81.2	28.07	8.7	28.27	.917
14	Panthers	2	Stanley Cup Finals	16	5	11	0	0	10	.313	0	0	34	64	-30	5.8	78.0	30.19	7.0	30.00	.867
15	Devils	2	Stanley Cup Finals	30	17	13	0	0	34	.567	0	0	69	63	6	12.2	81.7	27.67	8.3	22.70	.907
16	Flames	2	Stanley Cup Finals	18	8	10	0	0	16	.444	0	0	46	44	2	22.7	84.4	26.83	9.5	26.28	.907
17	Sabres	2	Stanley Cup Finals	12	4	8	0	0	8	.333	0	0	21	32	-11	11.5	88.5	27.33	6.4	30.00	.911
18	Golden Knights	1	Stanley Cup Finals	10	5	5	0	0	10	.500	0	0	40	32	8	27.3	83.3	30.80	13.0	29.10	.890
19	Predators	1	Stanley Cup Finals	6	2	4	0	0	4	.333	0	0	13	19	-6	22.2	90.9	29.00	7.5	24.00	.868
20	Sharks	1	Stanley Cup Finals	6	2	4	0	0	4	.333	0	0	12	15	-3	8.3	76.9	23.17	8.6	34.33	.927
21	Senators	1	Stanley Cup Finals	5	1	4	0	0	2	.200	0	0	11	16	-5	16.0	85.0	20.20	10.9	24.80	.871
22	Ducks	1	Stanley Cup Finals	12	7	5	0	0	14	.583	0	0	28	30	-2	13.2	84.8	23.83	9.8	25.25	.901
23	Hurricanes	1	Stanley Cup Finals	12	5	7	0	0	10	.417	0	0	26	30	-4	16.2	88.6	23.67	9.2	30.17	.917
24	Capitals	1	Stanley Cup Finals	9	4	5	0	0	8	.444	0	0	27	27	0	21.2	80.0	26.11	11.5	35.44	.915
25	Kings	1	Stanley Cup Finals	16	9	7	0	0	18	.563	0	0	43	33	10	18.8	88.9	31.31	8.6	28.50	.928