LeBron James has made the most career threes for the Cavaliers, with 1,251 three-pointers.

most career threes by a player cavs history

Interpreted as:

most career threes by a player by a player cavs history

NAME	3PM	GP	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
LeBron James	1,251	849	39.0	27.2	7.3	7.3	1.6	0.8	3.5	9.9	20.0	49.2	4.4	33.7	6.0	8.2	73.3	33,131	23,119	6,190	6,228	1,376	695	2,973	1,618	+4061
Kevin Love	1,096	489	28.6	15.7	9.2	2.2	0.6	0.4	1.7	5.1	11.9	42.9	6.0	37.6	3.2	3.8	84.8	13,978	7,663	4,493	1,097	293	176	841	880	+1021
Mark Price	802	582	31.1	16.4	2.6	7.2	1.3	0.1	2.5	5.9	12.3	47.9	3.4	40.9	3.2	3.6	90.6	18,127	9,543	1,533	4,206	734	68	1,457	765
Kyrie Irving	723	381	34.2	21.6	3.4	5.6	1.3	0.3	2.7	7.9	17.3	45.7	5.0	38.3	3.9	4.5	87.3	13,024	8,232	1,290	2,115	504	126	1,031	829	+406
Darius Garland	685	307	33.9	18.4	2.6	6.7	1.2	0.1	3.1	6.8	15.1	44.8	5.8	38.4	2.6	3.1	86.4	10,392	5,660	801	2,052	356	33	938	560	+394
Cedi Osman	628	404	23.6	9.7	3.0	2.0	0.7	0.1	1.1	3.5	8.2	42.7	4.4	35.3	1.2	1.6	71.5	9,546	3,938	1,231	814	276	60	436	801	-1103
JR Smith	585	255	29.3	10.3	2.9	1.8	1.0	0.3	0.9	3.8	9.3	40.1	6.0	38.1	0.5	0.7	69.7	7,476	2,628	743	468	264	64	229	580	+491
Daniel Gibson	578	397	23.5	7.8	2.0	2.0	0.6	0.2	0.9	2.7	6.7	40.2	3.6	40.7	1.0	1.3	78.0	9,316	3,115	792	775	243	86	373	811	+97
Wesley Person	550	328	31.5	12.0	3.6	2.0	0.9	0.4	1.0	4.6	10.0	46.1	4.0	42.2	1.1	1.4	76.7	10,347	3,924	1,196	651	310	132	325	434	-106
Danny Ferry	543	723	20.8	7.8	3.0	1.4	0.5	0.3	1.0	3.1	6.8	44.7	1.9	38.5	0.9	1.1	84.1	15,045	5,643	2,162	1,045	333	253	712	1,670	+152
Donovan Mitchell	427	123	35.6	27.5	4.6	5.2	1.6	0.5	2.7	9.6	20.3	47.5	9.2	37.8	4.8	5.6	86.6	4,374	3,385	569	634	200	57	334	286	+664
Mo Williams	414	227	30.9	14.8	2.9	4.6	0.8	0.2	2.3	5.3	12.1	44.2	4.5	40.2	2.2	2.5	89.1	7,006	3,350	654	1,052	186	45	514	536	+507
Craig Ehlo	381	513	28.7	9.9	4.4	3.5	1.3	0.4	1.6	4.0	8.6	46.3	2.0	38.1	1.2	1.8	68.1	14,701	5,103	2,267	1,803	661	180	833	1,178
Damon Jones	344	209	22.0	6.6	1.3	1.9	0.3	0.0	0.6	2.3	5.8	39.5	4.2	39.2	0.4	0.6	67.2	4,598	1,382	271	389	72	4	127	231	+296
Collin Sexton	325	218	32.9	20.0	3.0	3.3	0.8	0.1	2.5	7.5	16.3	45.8	3.9	37.8	3.6	4.3	82.7	7,179	4,356	663	720	181	23	541	510	-1475
Chris Mills	297	319	34.7	12.6	5.4	2.1	0.9	0.6	1.4	4.7	10.6	44.2	2.5	37.5	2.2	2.7	81.9	11,063	4,006	1,707	668	272	178	450	937	+219
Matthew Dellavedova	288	321	19.6	5.3	1.8	3.5	0.4	0.1	1.1	1.9	4.9	38.8	2.5	36.2	0.6	0.8	82.2	6,278	1,702	577	1,118	137	21	359	616	+412
Kyle Korver	286	124	21.6	9.3	2.3	1.1	0.4	0.3	0.8	3.1	6.7	46.8	5.1	45.4	0.7	0.8	88.3	2,684	1,153	291	140	45	37	101	212	+174
Isaac Okoro	263	279	27.6	8.5	2.9	1.7	0.8	0.4	0.9	3.1	6.5	46.7	2.7	34.7	1.4	2.0	73.2	7,693	2,371	800	468	231	110	240	647	-141
Terrell Brandon	261	457	26.6	12.7	2.7	4.9	1.4	0.3	1.8	4.8	10.8	44.6	1.6	36.0	2.5	2.8	86.8	12,174	5,793	1,235	2,235	621	142	818	778	+128
Caris LeVert	256	161	29.6	13.1	3.9	4.4	1.0	0.4	1.7	4.8	11.1	42.7	4.5	35.4	2.0	2.7	74.5	4,762	2,107	626	708	164	63	266	331	+271
Dean Wade	255	224	19.0	5.2	3.4	0.9	0.6	0.3	0.4	1.8	4.2	43.3	3.1	37.1	0.4	0.5	71.4	4,262	1,162	752	208	134	78	86	356	+90
Jordan Clarkson	247	138	25.4	15.5	2.9	2.3	0.7	0.2	1.5	5.8	13.0	44.8	5.2	34.7	2.1	2.4	84.8	3,512	2,140	397	314	93	24	206	189	-463
Anthony Parker	244	204	27.7	7.7	2.9	2.4	0.8	0.2	1.0	2.8	6.6	41.9	3.1	39.0	0.9	1.2	74.8	5,660	1,562	587	495	168	35	201	325	-128
Channing Frye	242	180	15.2	6.7	3.0	0.7	0.4	0.3	0.5	2.4	5.4	45.1	3.4	39.2	0.6	0.7	84.6	2,729	1,213	545	119	64	62	96	292	+48