Howard Johnson hit the most sac flies in 1991, with 15 sacrifice flies.

Interpreted as:

1991 MLB highest sacrifice fly by a player

	NAME	SF	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Howard Johnson H. Johnson	15	1991	NYM	156	564	108	146	34	4	38	117	78	1	120	30	16	658	302	76	0	12	4	.259	.342	.535	.877	103	29.3	.376	141	30.3
2	Barry Bonds B. Bonds	13	1991	PIT	153	510	95	149	28	5	25	116	107	4	73	43	13	634	262	58	0	25	8	.292	.410	.514	.924	110	38.3	.396	155	39.4
3	Bobby Bonilla B. Bonilla	11	1991	PIT	157	577	102	174	44	6	18	100	90	2	67	2	4	680	284	68	0	8	14	.302	.391	.492	.883	114	36.9	.388	149	38
4	Shawon Dunston S. Dunston	11	1991	CHC	142	492	59	128	22	7	12	50	23	4	64	21	6	534	200	41	4	5	9	.260	.292	.407	.699	55	-5.2	.305	86	-8.5
5	Andy Van Slyke A. Van Slyke	11	1991	PIT	138	491	87	130	24	7	17	83	71	4	85	10	3	577	219	48	0	1	5	.265	.355	.446	.801	83	17.5	.357	128	18.4
6	Ivan Calderon I. Calderon	10	1991	MON	134	470	69	141	22	3	19	75	53	3	64	31	16	537	226	44	1	4	7	.300	.368	.481	.848	84	23.1	.374	139	24
7	Alvin Davis A. Davis	10	1991	SEA	145	462	39	102	15	1	12	69	56	0	78	0	3	528	155	28	0	9	8	.221	.299	.335	.635	45	-14.1	.283	72	-17.5
8	John Olerud J. Olerud	10	1991	TOR	139	454	64	116	30	1	17	68	68	6	84	0	2	541	199	48	3	9	12	.256	.353	.438	.791	74	13	.349	115	9.5
9	George Bell G. Bell	9	1991	CHC	149	558	63	159	27	0	25	86	32	4	62	2	6	603	261	52	0	6	10	.285	.323	.468	.791	81	13.2	.346	114	9.4
10	Joe Carter J. Carter	9	1991	TOR	162	638	89	174	42	3	33	108	49	10	112	20	9	706	321	78	0	12	6	.273	.330	.503	.833	103	23.4	.361	123	18.8
11	Ken Griffey Jr. K. Griffey Jr.	9	1991	SEA	154	548	76	179	42	1	22	100	71	1	82	18	6	633	289	65	4	21	10	.327	.399	.527	.926	111	39.6	.399	147	35.5
12	John Kruk J. Kruk	9	1991	PHI	152	538	84	158	27	6	21	92	67	1	100	7	0	615	260	54	0	16	11	.294	.367	.483	.851	93	24.1	.369	134	23.7
13	Don Mattingly D. Mattingly	9	1991	NYY	152	587	64	169	35	0	9	68	46	4	42	2	0	646	231	44	0	11	21	.288	.339	.394	.733	76	3	.324	99	-0.4
14	Pete O'Brien P. O'Brien	9	1991	SEA	152	560	58	139	29	3	17	88	44	1	61	0	1	617	225	49	3	7	14	.248	.300	.402	.701	65	-4.4	.309	89	-8.4
15	Cal Ripken Jr. C. Ripken Jr.	9	1991	BAL	162	650	99	210	46	5	34	114	53	5	46	6	1	717	368	85	0	15	19	.323	.374	.566	.940	129	48.2	.405	154	46
16	Ryne Sandberg R. Sandberg	9	1991	CHC	158	585	104	170	32	2	26	100	87	2	89	22	8	684	284	60	1	4	9	.291	.379	.485	.865	112	34.4	.383	139	30.2
17	Ruben Sierra R. Sierra	9	1991	TEX	161	661	110	203	44	5	25	116	56	0	91	16	4	726	332	74	0	7	17	.307	.357	.502	.859	114	32.5	.376	134	29.5
18	Terry Steinbach T. Steinbach	9	1991	OAK	129	456	50	125	31	1	6	67	22	7	70	2	2	494	176	38	0	4	15	.274	.312	.386	.698	52	-3.3	.309	95	-3.2
19	B.J. Surhoff	9	1991	MIL	143	505	57	146	19	4	5	68	26	0	33	5	8	553	188	28	13	2	21	.289	.319	.372	.691	58	-4.1	.309	91	-5.7
20	Robin Yount R. Yount	9	1991	MIL	130	503	66	131	20	4	10	77	54	4	79	6	4	571	189	34	1	8	13	.260	.332	.376	.707	63	-1	.316	96	-2.8
21	George Brett G. Brett	8	1991	KCR	131	505	77	129	40	2	10	61	58	0	75	2	0	572	203	52	1	10	20	.255	.327	.402	.729	66	1.5	.322	98	-1.5
22	Tom Brunansky T. Brunansky	8	1991	BOS	142	459	54	105	24	1	16	70	49	3	72	1	2	519	179	41	0	2	8	.229	.303	.390	.692	55	-3.1	.310	86	-8.7
23	Eddie Murray E. Murray	8	1991	LAD	153	576	69	150	23	1	19	96	55	0	74	10	3	639	232	43	0	17	17	.260	.321	.403	.724	71	-1.4	.315	100	0.3
24	Lou Whitaker L. Whitaker	8	1991	DET	138	470	94	131	26	2	23	78	90	2	45	4	2	572	230	51	2	6	3	.279	.391	.489	.881	96	31.4	.389	141	27.8
25	Jeff Bagwell J. Bagwell	7	1991	HOU	156	554	79	163	26	4	15	82	75	13	116	7	4	650	242	45	1	5	12	.294	.387	.437	.824	100	26.2	.370	138	28.1