Ken Griffey Jr. has crushed the most career grand slams for the Mariners, with 12 grand slams.

	NAME	GRANDSLAM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Ken Griffey Jr. K. Griffey Jr.	12	1,685	6,317	1,113	1,843	341	30	417	1,216	819	48	1,081	167	60	7,250	3,495	788	6	60	172	118	.292	.374	.553	.927
2	Jay Buhner J. Buhner	9	1,440	4,922	789	1,255	231	19	307	951	788	53	1,375	6	24	5,828	2,445	557	12	53	41	121	.255	.360	.497	.857
3	Edgar Martinez E. Martinez	9	2,055	7,213	1,219	2,247	514	15	309	1,261	1,283	89	1,202	49	30	8,672	3,718	838	10	77	113	190	.312	.418	.515	.933
4	Alvin Davis A. Davis	9	1,166	4,136	563	1,163	212	10	160	667	672	28	549	7	16	4,892	1,875	382	2	54	86	95	.281	.381	.453	.834
5	Richie Sexson R. Sexson	8	509	1,835	259	447	105	1	105	321	241	15	497	4	2	2,102	869	211	0	11	10	51	.244	.334	.474	.808
6	Raul Ibanez R. Ibanez	7	1,110	3,861	540	1,077	216	20	156	612	367	14	707	21	15	4,270	1,801	392	0	28	44	79	.279	.341	.466	.808
7	Alex Rodriguez A. Rodriguez	7	790	3,126	627	966	194	13	189	595	310	31	616	133	36	3,515	1,753	396	16	32	9	63	.309	.374	.561	.934
8	J.P. Crawford	6	858	3,182	440	797	163	11	64	326	412	34	665	32	15	3,661	1,174	238	15	18	3	51	.250	.341	.369	.710
9	Mike Blowers M. Blowers	6	464	1,357	182	366	69	4	55	231	153	3	351	5	8	1,534	608	128	12	9	6	51	.270	.343	.448	.791
10	Cal Raleigh C. Raleigh	5	623	2,164	313	489	95	2	153	376	266	19	696	21	5	2,465	1,047	250	0	16	22	27	.226	.314	.484	.798
11	Kyle Seager K. Seager	5	1,480	5,561	705	1,395	309	14	242	807	533	63	1,120	55	27	6,204	2,458	565	5	42	35	107	.251	.321	.442	.763
12	Ichiro Suzuki I. Suzuki	4	1,861	7,907	1,181	2,542	295	79	99	633	517	47	800	438	97	8,536	3,292	473	28	37	172	67	.321	.365	.416	.781
13	Mike Cameron M. Cameron	4	610	2,162	353	554	115	19	87	344	296	31	601	106	27	2,528	968	221	13	26	7	44	.256	.350	.448	.798
14	Paul Sorrento P. Sorrento	4	289	928	135	259	51	1	54	173	108	10	215	0	4	1,055	474	106	2	7	19	23	.279	.358	.511	.869
15	Bret Boone B. Boone	4	803	3,119	467	863	167	16	143	535	262	33	610	50	24	3,467	1,491	326	18	35	17	76	.277	.336	.478	.814
16	Mitch Haniger M. Haniger	3	651	2,435	377	619	119	9	119	350	245	36	682	18	6	2,737	1,113	247	1	20	8	49	.254	.329	.457	.786
17	Randy Winn R. Winn	3	416	1,612	233	462	96	11	31	193	131	20	259	56	18	1,799	673	138	21	15	4	32	.287	.345	.417	.762
18	Tino Martinez T. Martinez	3	543	1,896	251	502	106	6	88	312	198	12	309	3	6	2,139	884	200	10	23	35	52	.265	.334	.466	.801
19	Jim Presley J. Presley	3	799	2,946	351	736	147	13	115	418	177	15	713	8	12	3,175	1,254	275	11	26	17	92	.250	.293	.426	.719
20	Leon Roberts L. Roberts	3	393	1,296	187	358	63	16	47	179	140	11	175	17	10	1,473	594	126	13	13	9	27	.276	.349	.458	.807
21	Julio Rodríguez J. Rodríguez	2	590	2,384	368	654	110	9	112	341	169	37	628	116	28	2,597	1,118	231	0	7	16	46	.274	.331	.469	.800
22	Tim Beckham T. Beckham	2	88	304	39	72	21	1	15	47	21	3	102	1	3	328	140	37	0	0	0	7	.237	.293	.461	.753
23	Taylor Motter T. Motter	2	99	273	31	55	12	0	8	27	23	0	67	12	1	297	91	20	0	1	0	9	.201	.263	.333	.596
24	Seth Smith S. Smith	2	273	773	116	192	46	5	28	105	95	12	188	0	0	890	332	79	1	9	5	26	.248	.336	.429	.766
25	Robinson Cano R. Cano	2	704	2,776	389	821	159	5	107	411	232	25	407	13	10	3,050	1,311	271	0	17	43	90	.296	.353	.472	.826