Since 2016, Ezekiel Elliott has the most fumbles by a running back, with 21 fumbles.

most fumbles by a running back since 2016
ElliottHydeRichardCohenJohnsonGurleyCookGordonCarsonJohnsonIngramPetersonDrakeHenryBellMcCoyCollinsBarnerIvoryFreemanAjayiBookerGallman2114141313131212111110101010999888887
NAMEGPFUMLOSTRUSH YDSATTRUSH AVGRUSH YDS/GRUSH TDREC YDSRECTRGREC AVGREC YDS/GREC TD
Ezekiel ElliottEzekiel Elliott7121106,3841,4134.589.9461,9572413158.127.610
Carlos HydeCarlos Hyde691473,9239554.156.9296811221735.69.93
Jalen RichardJalen Richard771451,2932555.116.841,5181792228.519.73
Tarik CohenTarik Cohen511351,1012644.221.651,5752092757.530.99
David JohnsonDavid Johnson581383,2388034.055.8312,07620529810.135.813
Todd GurleyTodd Gurley751364,9761,2314.066.3572,0662223109.327.512
Dalvin CookDalvin Cook431283,6617694.885.1331,2751481828.629.73
Melvin GordonMelvin Gordon681294,5851,0904.267.4451,8392233058.227.012
Chris CarsonChris Carson451163,2707154.672.7217751011257.717.27
Duke JohnsonDuke Johnson751161,5523554.420.782,2952463269.330.610
Mark IngramMark Ingram701084,1298474.959.0361,2021571937.717.210
Adrian PetersonAdrian Peterson601073,1458113.952.42152963928.48.81
Kenyan DrakeKenyan Drake771053,1306954.540.6271,2441692307.416.26
Derrick HenryDerrick Henry781065,8601,1825.075.155692761059.18.93
Le'Veon BellLe'Veon Bell53943,6769094.069.4211,8702422987.735.35
LeSean McCoyLeSean McCoy68933,4157934.350.2261,3241862337.119.54
Alex CollinsAlex Collins39961,5863754.240.71638050707.69.71
Kenjon BarnerKenjon Barner5581285664.35.2312317297.22.20
Chris IvoryChris Ivory38851,2063443.531.75566547710.514.91
Devonta FreemanDevonta Freeman51842,8406754.255.7211,2701611997.924.97
Jay AjayiJay Ajayi36842,3595234.565.51232956765.99.11
Devontae BookerDevontae Booker77851,5263824.019.899561221647.812.41
Wayne GallmanWayne Gallman53731,4443384.327.29498801126.29.42
Alvin KamaraAlvin Kamara60723,3406725.055.7432,8243264098.747.115
Austin EkelerAustin Ekeler56751,9014014.733.992,0792122619.837.116
StatMuse has season-level data for fumbles going back to the 1945 season.

Try also: