The New York Islanders have played 324 games in the playoffs all-time.

	TEAM	GP	SEASON	W	L	G	GA	DIFF	PP%	PK%	S/GP	S%	SA/GP	SV%
1	Islanders	17	1974-75	9	8	47	50	-3			27.65	10.0	32.88	.911
2	Islanders	13	1975-76	7	6	43	39	4			29.46	11.2	29.92	.900
3	Islanders	12	1976-77	8	4	36	32	4			24.42	12.3	30.67	.913
4	Islanders	7	1977-78	3	4	13	16	-3	10.7	84.6	31.14	6.0	27.43	.917
5	Islanders	10	1978-79	6	4	27	21	6	9.7	88.9	27.80	9.7	28.90	.927
6	Islanders	21	1979-80	15	6	88	66	22	26.0	84.1	31.43	13.3	29.33	.893
7	Islanders	18	1980-81	15	3	97	48	49	37.8	80.2	30.28	17.8	27.06	.901
8	Islanders	19	1981-82	15	4	85	52	33			33.05	13.5	27.74	.901
9	Islanders	20	1982-83	15	5	94	53	41	24.7	87.0	32.60	14.4	30.30	.913
10	Islanders	21	1983-84	12	9	62	60	2	15.9	82.2	25.81	11.4	28.52	.900
11	Islanders	10	1984-85	4	6	25	28	-3			26.60	9.4	33.10	.915
12	Islanders	3	1985-86	0	3	4	11	-7	9.1	76.9	30.00	4.4	31.00	.882
13	Islanders	14	1986-87	7	7	35	42	-7	22.0	85.9	28.86	8.7	34.71	.914
14	Islanders	6	1987-88	2	4	18	23	-5	13.2	76.7	31.67	9.5	25.67	.851
15	Islanders	5	1989-90	1	4	13	22	-9	15.4	67.7	33.40	7.8	30.00	.853
16	Islanders	18	1992-93	9	9	58	65	-7	9.4	80.3	32.94	9.8	30.50	.882
17	Islanders	4	1993-94	0	4	3	22	-19	5.9	70.4	22.50	3.3	31.75	.827
18	Islanders	7	2001-02	3	4	21	22	-1	28.9	88.4	28.29	10.6	30.71	.898
19	Islanders	5	2002-03	1	4	7	13	-6	9.7	85.7	27.20	5.1	27.60	.906
20	Islanders	5	2003-04	1	4	5	12	-7	12.5	91.3	28.40	3.5	24.20	.901
21	Islanders	5	2006-07	1	4	11	17	-6	10.5	83.3	26.80	8.2	32.40	.895
22	Islanders	6	2012-13	2	4	17	25	-8	10.0	66.7	32.83	8.6	27.83	.850
23	Islanders	7	2014-15	3	4	15	16	-1	0.0	84.6	28.43	7.5	31.57	.928
24	Islanders	11	2015-16	5	6	26	32	-6	23.1	85.7	33.09	7.1	35.64	.918
25	Islanders	8	2018-19	4	4	19	19	0	20.0	91.7	30.63	7.8	30.63	.922
	Total	324		175	149	1,016	945	71	21.8	79.4	29.61	10.6	30.48	.904